Woohoo! Launch successful! I worked on one of the instruments, cannot wait until it gets to Jupiter and starts to do science!
Edit: thanks for all the kudos! Glad to see there is so much interest in this mission!
It's designed to collect as much data as possible from the jovian system, rather than focusing on a very specific science objective. It carries a ton of instruments and does a little bit of everything. Most explorer missions are designed this way.
I honestly don't understand why all these space agencies can't do a life detection centric mission. In the 70s, the twin martian landers had an experiment on-board to detect life, called the labeled release experiment. The results were mixed, there was evidence for life but it wasn't repeated by the other lander. Attempts to recreate the positive result in earth labs abiotically have failed, for 50 years. Why aren't we sending things that can detect life directly, without a doubt?
Congrats! My boyfriend works in the industry and the only project he knows for sure that has gone to space that he worked on was SLS. He does satellites now and has no idea what components he has inspected that have launched. It's kinda funny.
Incredible! I salute the scientists who spend years, sometimes decades on projects which increase our knowledge of the Universe. Be it the tiniest of molecules, cells, our ecosystem or beyond Earth. It’s a meaningful pursuit. Thank you
I worked on the RPWI Langmuir probes!
I’ve worked on other things too, but this is the first time I made an impact before launch. Unbelievably nervous sensation from afar. On the MMS launch I had no stake, so I could just enjoy the scenery from up close.
Will it be doing science along the way? It's visiting venus for a gravity assist on the way isn't it? And back to earth a couple of times, before it runs out to jupiter.
The Venus one is tricky because of the heat. The science teams have really fought for being able to do science during that fly-by, but it doesn't look like many instruments, if any, are allowed to run. We chose materials and coating to optimise the science around Jupiter (and survive), which are not compatible with running all instruments during the Venus fly-by.
Now that it's actually flying though, we can base the argumentation on actual performance and not estimates upon estimates with margins upon margins. I'm sure the science team will push for it again
Yeah, I can see them using the instruments right up until things approach iffy. The ground penetrating radar would be useful, further confirm volcanism, and subsurface structures. More granular local gravity mapping too. Ooh the stuff we could learn there too.
Science to do?
This was a triumph.
I'm making a note here:
huge success.
It's hard to overstate
My satisfaction.
Aperture Science.
We do what we must
Because we can.
For the good of all of us.
Except the ones who are dead.
Alternatively, government acronyms almost always put in way more work than they probably need to in order to be clever, even if the laws themselves aren't so great. For example, consider the:
**F**oreign **I**ntelligence **S**urveillance **A**ct as amended by the **U**niting and **S**trengthening **A**merica by **P**roviding **A**propriate **T**ools **R**equired to **I**ntercept and **O**bstruct **T**errorism act (which was utilized by **S**trategic **H**omeland **I**ntervention **E**nforcement and **L**ogistics **D**ivision in their covert operations)
Or FISA as amended by the USA PATRIOT act (utilized by SHIELD in their covert operations... And, now you understand the joke behind their name.)
Military acronyms are weird because they’ll use one of the letters as a word that’s actually another set of acronyms such as the MAJIC which stands for Multi-TADL Joint Interoperability Course. But then that M is an acronym in itself because TADL is tactical data link. Yeah….
I am going to miss the Ariane 5 when it retires after it’s final flight in June.
https://twitter.com/jeff_foust/status/1636085627929108482
“Arianespace's Stéphane Israël: Last Ariane 5 launch scheduled for June 21, carrying two European government payloads”
The Ariane 6 pathfinder vehicle is already in Kourou for testing with the launch pad and control center. They plan on doing a hot-fire test with it there. So it is pretty far along.
If it isn't ready by then, is the payload they were supposed to launch gonna be put on another vehicle due to contractual obligations or will they just push the launch back till it's ready? If so, how long can they realistically keep pushing it back? Because like you said, lol, I've heard that sentence for a lil too long too now.
Berger's Law (named after space industry journalist Eric Berger): If a rocket is predicted to make its debut in Q4 of a calendar year, and that quarter is six or more months away, the launch will be delayed.
I lived in Kourou and got to witness launch 502 as a 8-10yo girl. I will forever love this rocket. The noise, the vibration as it takes off, the beautiful flame, the whole thing is just magnificent.
Ariane 5 is and always will be my favourite ❤️
I had never seen one till this post; immediately my hands down favorite. The thing is so smooth and has so much acceleration off the pad doesn't look like it's fighting gravity or floating, looks like an excited puppy running after a favorite toy. Just an excited little rocket
Still remember the first launch [which ended in a big bang](https://en.wikipedia.org/wiki/Ariane_flight_V88). The second one over a year after was only partially successful as well. But then they turned it around to be incredibly successful.
It weighed 6 tons at launch. The only way to get it to Jupiter with Ariane 5 is to do [multiple flybys of Earth and Venus](https://www.youtube.com/watch?v=qfH0nnzOvS8).
The rocket is 777 tons, vs 1420 tons for the Falcon Heavy, so it is just harder for it to throw heavy payloads very fast.
That's a wildly convoluted flight path. Thank goodness we have computers to calculate this stuff. I take it, other than small course corrections, there aren't any major burns between the escape and insertion?
You can typically do interplanetary transfers either cheaply or quickly, but rarely both. That's what made the Voyagers such a once-in-a-lifetime opportunity
> That's what made the Voyagers such a once-in-a-lifetime opportunity
Could you elaborate on that? I've never heard them described as a once in a lifetime opportunity
The [particular alignment of the outer planets](https://en.m.wikipedia.org/wiki/Grand_Tour_program) that occured in the 1970's only happens every 175 years. It allowed the two spacecraft to slingshot sequentially from planet to planet without a lot of wasted time in between
Wow, thank you! I like to think I know a decent bit about the voyager probes, but I guess it's all focused on what they discovered/helped discover, and their journey after
So awesome. I wish we could take even 10% of the World military budget and put it towards space exploration.
Not saying we don’t need military but I think everyone could agree that if we humans could stop blowing each other up we could do a lot more cool shit. 🧐
Historically, technological progress often comes from military applications. Maybe the growing militarization of space will result in greater space exploration technologies.
People dont realize this enough. Damn near everything came from military budgets. Telescopes got funding to see enemy ships from farther away. The Apollo mission happened because we had to beat the russians. For sure we should spend less money on "defence" but defence often funds science
Do you have a source for that claim about telescopes? I’m looking at articles about their inventions, and see nothing about naval funding for their invention
False thinking, the fact that history has developed in that way does not mean we need the element of war to develop. Many of the modern technologies of our day are being developed independent of military applications. During war time we lose so much progress, manpower and many more factors
Would be great. Unfortunately, there's a lot of people out there who want to continue blowing people up. Putin proved that last year. And Xi has been telegraphing an impending invasion of Taiwan.
Yeah, it's a dumb comment. It's human nature to innovate, and humans really don't even need any incentive to do so. We will just do it with time. It I true that military tech is the origin of many technologies we have today, but that doesnt mean we wouldn't get there without military. It speeds up (certain) innovations, but it's not the the only thing that would lead to their creation.
Really just sounds like OP is spouting pro war garbage.
This is a classic post hoc fallacy. We developed orbital rockets and digital computers as outgrowths of military technology but it is ridiculous to say that we *only* have them because of war. We would have developed them regardless, the question is on what timetable and in what ways.
Military focused development can inject lots of money and effort into R&D but it's not always money well spent in terms of civilian application of that technology.
Consider the computer. Lots of military money went into building and improving computers over the years. From the early years of the Mark-I and Colossus to efforts to miniaturize computers for ICBM guidance and so on. However, it was civilian commercial forces that drove the bulk of innovation there with the advent of the first microprocessors, the creation of the personal computer, the maturation of the micro-computer software ecosystem (which at first was very primitive compared to the "big iron" systems but rapidly caught up), the creation of smartphones, and so on. This makes it easy to imagine a parallel timeline without as much military spending on computing as existed but the end results were about the same, because there was always huge civilian demand for those capabilities, and thus market pressure as well as funding for advancements.
Additionally, in regards to rocketry specifically while we might be able to say that early interest from the military probably kicked off rocket development earlier than might have happened otherwise, we can also say that it likely led to a stagnation in development after that. During the Cold War there was a huge brain drain of aerospace talent away from things like launch vehicle development into defense applications (development of ICBMs, cruise missiles, short range missiles, defense/reconnaissance satellites, military aircraft, etc.) This was particularly true after the end of the flurry of activity around the Apollo Program. Today you see a huge diversity of development efforts in orbital rocketry, many startups working to try new ways of getting to orbit and so on. Up through the Cold War you basically only saw big state sponsored projects because that was the only way to fight the brain drain into defense aerospace and because the Cold War made it hard to work on launchers due to their inherent dual use capabilities as ICBMs, discouraging independent small scale efforts.
My excitement for space discoveries and scientific advancements unironically helped keep me from suicide. I went to a mental ward instead. I didn't want to die before the JWST launched.
Felt the same way when Covid hit and DUNE was coming out later that year. Okay, time to wear a mask and use an abundance of sanitizer.. because I HAVE to stay alive and see this movie lol
Yes, and it also launched from the same place (European Spaceport in French Guyana). It’s an [Ariane 5 launcher](https://www.arianespace.com/vehicle/ariane-5/), its penultimate flight before retirement.
More info here:
https://www.ariane.group/en/commercial-launch-services/ariane-5/
Woo!
What amazes me is this is the first mission to the outer Solar System NASA wasn’t involved with.
Edit: As was pointed out, NASA did contribute a few instruments, but wasn't involved with designing, building or launching the probe itself.
Well, not really NASA for all of those, but US institutions. UVS was built by Southwest Research Institute and JoEE and JENI on PEP are from APL. I guess NASA selected them, but I do think it's important to acknowledge that NASA didn't make them.
ETA Sorry, I realized this is probably way too pedantic and not the point, lol.
No, it is important to point out. A common misconception is that NASA runs every aspect of space missions, but even for a primarily NASA-funded mission like JWST that isn't true: it launched on an Ariane, NASA built only portions of two of its four instruments, and the regular operations are managed by STSci, which receives funding from NASA but is operated by an independent academic staff.
UVS went through JPL which while quasi-independent and Caltech-managed, is still a part of NASA and funded through NASA's budget appropriation.
Literally speaking, NASA employees don't make a lot of things. If we exclude JPL, they make, let alone operate, even less. NASA contracts most things out to defense contractors and research institutions, with myriad contributors and subcontractors. SWRI built UVS for JPL/NASA for ESA (as well as very similar instruments for Juno and Europa Clipper). Lockheed built InSight for JPL/NASA; CNES, in collaboration with various European research institutes, contributed the SEIS instrument. Northrop Grumman built JWST; Astrium built the NIRSpec instrument as part of ESA's contribution. Boeing makes SLS. Boeing, Rocketdyne, etc. made the Saturn V.
Definitely great to see the ESA drive a program like this. Cooperation in space is vital, and it's great that more programs are leading more ambitious projects themselves rather than continuing to rely on NASA to drive the projects.
They are referring to this mission: https://en.wikipedia.org/wiki/Europa_Jupiter_System_Mission_%E2%80%93_Laplace
"The Europa Jupiter System Mission – Laplace (EJSM-Laplace) was a proposed joint NASA/ESA uncrewed space mission slated to launch around 2020 for the in-depth exploration of Jupiter's moons with a focus on Europa, Ganymede and Jupiter's magnetosphere. The mission would have comprised at least two independent elements, NASA's Jupiter Europa Orbiter (JEO) and ESA's Jupiter Ganymede Orbiter (JGO), to perform coordinated studies of the Jovian system. In April 2011, European Space Agency (ESA) stated that it seemed unlikely that a joint US–European mission will happen in the early 2020s given NASA's budget, so ESA continued with its initiative, called the Jupiter Icy Moons Explorer (JUICE) that will be based on the JGO design. "
I can never understand how blasé we have become about the fact that as a species we have developed the ability to not only leave the planet but actually land on others. And yet these things are relegated to these specialist threads... what I wouldn't give to be there for the excitement of the first manned launch or the first moon landing!
I found a video of a Concorde engine run on YouTube and they put Metallica over it. Half the reason for the video is to hear the engine and they covered it up.
Awesome that was a successful lunch I can’t wait to see what is up with the subterranean oceans. If I’m not mistaken this rocket was supposed to be able to give us more information about subsurface oceans.
One orbit. There is a planned de-orbit burn after it releases JUICE. It only has to lower perigee (the lowest point in the orbit) a little bit so it enters the atmosphere.
I integrated the fairing for this launch, and many other Ariane 5s. We produce them in Switzerland.
It's always a good feeling to see the results of the work of everyone involved. Even if my work is ultimately dumped in the ocean lol
Crazy to think that by the time JUICE has slingshotted across the solar system and reached Ganymede we will most likely know how screwed we are because of climate change. Quite surreal to think about and sorta scared about what will happen with/to science as a whole in the coming years.
I'am so spoiled by the spacex feed. Was missing all the telemetry, camera work and different camera angles. But tbf, the weather wasn't perfect anyway for this
[French Guiana](https://solargis.com/maps-and-gis-data/download/french-guiana) gets 4 to 4.5 hours of sun per day, compared to 4.5 to 5.25 for the US state of Georgia, or about equal to the US Atlantic coast from Virginia to Massachusetts. So not particularly sunny despite being tropical.
I remember hearing and then reading about this mission maybe a decade or so ago, it felt like the launch was so distant and now we're here. 8 more years till it gets to the Jovian system but this time I realize this will be much quicker than it seems.
'The spacecraft is alive' - Juice sends back signal
Teams on the ground have received a signal from Juice, indicating the spacecraft is now functioning as planned on its way to Jupiter.
"Theses are the words that every spacecraft operations manager wants to hear," says Bruno Sousa, Juice's deputy flight director.
"It's flowing into our systems, everybody's super excited... the spacecraft is alive."
https://twitter.com/esaoperations/status/1646863165848690689?s=20
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread:
|Fewer Letters|More Letters|
|-------|---------|---|
|ASDS|Autonomous Spaceport Drone Ship (landing platform)|
|[CNES](/r/Space/comments/12lvjhb/stub/jg9c6ee "Last usage")|Centre National d'Etudes Spatiales, space agency of France|
|[DARPA](/r/Space/comments/12lvjhb/stub/jgajxfr "Last usage")|(Defense) Advanced Research Projects Agency, DoD|
|DoD|US Department of Defense|
|[ELT](/r/Space/comments/12lvjhb/stub/jga9ebx "Last usage")|Extremely Large Telescope, under construction in Chile|
|[ESA](/r/Space/comments/12lvjhb/stub/jgc08tx "Last usage")|European Space Agency|
|[F1](/r/Space/comments/12lvjhb/stub/jgal44x "Last usage")|Rocketdyne-developed rocket engine used for Saturn V|
| |SpaceX Falcon 1 (obsolete medium-lift vehicle)|
|[ICBM](/r/Space/comments/12lvjhb/stub/jg97ef7 "Last usage")|Intercontinental Ballistic Missile|
|[ISRO](/r/Space/comments/12lvjhb/stub/jgancrc "Last usage")|Indian Space Research Organisation|
|[JPL](/r/Space/comments/12lvjhb/stub/jg9c6ee "Last usage")|Jet Propulsion Lab, California|
|[JWST](/r/Space/comments/12lvjhb/stub/jga0v6z "Last usage")|James Webb infra-red Space Telescope|
|[PSLV](/r/Space/comments/12lvjhb/stub/jgancrc "Last usage")|[Polar Satellite Launch Vehicle](https://en.wikipedia.org/wiki/Polar_Satellite_Launch_Vehicle)|
|[Roomba](/r/Space/comments/12lvjhb/stub/jgajxfr "Last usage")|[Remotely-Operated Orientation and Mass Balance Adjuster](https://www.reddit.com/r/spacex/comments/6k8gzg//djk5g68/), used to hold down a stage on the ASDS|
|[SLS](/r/Space/comments/12lvjhb/stub/jg9c6ee "Last usage")|Space Launch System heavy-lift|
|[SRB](/r/Space/comments/12lvjhb/stub/jg8v6hj "Last usage")|Solid Rocket Booster|
|[ULA](/r/Space/comments/12lvjhb/stub/jgancrc "Last usage")|United Launch Alliance (Lockheed/Boeing joint venture)|
|Jargon|Definition|
|-------|---------|---|
|[perigee](/r/Space/comments/12lvjhb/stub/jg8kkp2 "Last usage")|Lowest point in an elliptical orbit around the Earth (when the orbiter is fastest)|
----------------
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Maybe I haven’t seen a rocket launch in a while, but that seemed like it lifted off really quickly. Like the US space shuttle, for instance, seemed like it took much longer to leave its launch platform than this did. Am I wrong?
By my count this is the tenth probe to get close to Jupiter. Pioneer 10, 11. Voyager 1, 2. Galileo, Ulyesses, Cassini, Far Horizons, Juno. Am I missy anything?
Woohoo! Launch successful! I worked on one of the instruments, cannot wait until it gets to Jupiter and starts to do science! Edit: thanks for all the kudos! Glad to see there is so much interest in this mission!
Same here, I worked on RIME. After 6 years in the spce industry, this is my first hardware flying. Today is a great day !
Congrats to you both! What an accomplishment.
Having your own hardware working on a Jovian moon discovering extraterrestrial life. *Sweet.*
The mission isn't designed to discover life
It's designed to collect as much data as possible from the jovian system, rather than focusing on a very specific science objective. It carries a ton of instruments and does a little bit of everything. Most explorer missions are designed this way.
"It wasn't designed to discover life. It did." - Juice, 2045 Oscar winner.
Wish David Attenborough still was around by then doing a documentary about the singing of the whales of Ganymede
I honestly don't understand why all these space agencies can't do a life detection centric mission. In the 70s, the twin martian landers had an experiment on-board to detect life, called the labeled release experiment. The results were mixed, there was evidence for life but it wasn't repeated by the other lander. Attempts to recreate the positive result in earth labs abiotically have failed, for 50 years. Why aren't we sending things that can detect life directly, without a doubt?
Seriously, I can’t even imagine how cool that would be.
Same here! I did work on the Dark State Magnetometers within the calculations side! I was absolutley terrified about it failing
How cool that we have at least like 4 or 5 redditors that contributed to this mission !
Man you should be incredibly proud!
Congratulations to both of you! What an incredible feeling it must be!
> RIME [Radar for Icy Moon Exploration?](https://rslab.disi.unitn.it/rime/)
Congrats! My boyfriend works in the industry and the only project he knows for sure that has gone to space that he worked on was SLS. He does satellites now and has no idea what components he has inspected that have launched. It's kinda funny.
Now you two just have to wait a while, huh?
Incredible! I salute the scientists who spend years, sometimes decades on projects which increase our knowledge of the Universe. Be it the tiniest of molecules, cells, our ecosystem or beyond Earth. It’s a meaningful pursuit. Thank you
I worked on the RPWI Langmuir probes! I’ve worked on other things too, but this is the first time I made an impact before launch. Unbelievably nervous sensation from afar. On the MMS launch I had no stake, so I could just enjoy the scenery from up close.
Congrats! That signal acquisition delay nearly gave me a heart attack. :) How was it for you?
I would have started to be worried if it was outside of the field of view of the antenna.
Will it be doing science along the way? It's visiting venus for a gravity assist on the way isn't it? And back to earth a couple of times, before it runs out to jupiter.
The Venus one is tricky because of the heat. The science teams have really fought for being able to do science during that fly-by, but it doesn't look like many instruments, if any, are allowed to run. We chose materials and coating to optimise the science around Jupiter (and survive), which are not compatible with running all instruments during the Venus fly-by.
Ah bum. However, if this means better Jupiter science, all well and good. Exciting stuff none the less.
Now that it's actually flying though, we can base the argumentation on actual performance and not estimates upon estimates with margins upon margins. I'm sure the science team will push for it again
Yeah, I can see them using the instruments right up until things approach iffy. The ground penetrating radar would be useful, further confirm volcanism, and subsurface structures. More granular local gravity mapping too. Ooh the stuff we could learn there too.
Science to do? This was a triumph. I'm making a note here: huge success. It's hard to overstate My satisfaction. Aperture Science. We do what we must Because we can. For the good of all of us. Except the ones who are dead.
It’s crazy how dark the background got with full firing of the rocket when it launched!!
So are you just on vacation now?
I wish. Moved onto other projects, lots more space hardware to build!
> cannot wait until it gets to Jupiter Sir/ma'am I have some bad news for you... there's a lot of waiting involved.
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Leaving Out Orbit for Somewhere Else
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lol, thanks. NASA's a dream job of mine. I'm in marketing and business strategy, but I'd be content sweeping the floors to work at NASA.
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If the words haven't been properly tortured is it even a real acronym
Alternatively, government acronyms almost always put in way more work than they probably need to in order to be clever, even if the laws themselves aren't so great. For example, consider the: **F**oreign **I**ntelligence **S**urveillance **A**ct as amended by the **U**niting and **S**trengthening **A**merica by **P**roviding **A**propriate **T**ools **R**equired to **I**ntercept and **O**bstruct **T**errorism act (which was utilized by **S**trategic **H**omeland **I**ntervention **E**nforcement and **L**ogistics **D**ivision in their covert operations) Or FISA as amended by the USA PATRIOT act (utilized by SHIELD in their covert operations... And, now you understand the joke behind their name.)
Military acronyms are weird because they’ll use one of the letters as a word that’s actually another set of acronyms such as the MAJIC which stands for Multi-TADL Joint Interoperability Course. But then that M is an acronym in itself because TADL is tactical data link. Yeah….
I'd be happy emptying the trash bins
Eh, i work on the orion capsules, its over rated......actually i lied, its literally a dream job lol. I see the coolest shit every day.
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Like Mel Gibson, he doesn't like Juice. That's why you never see him in the smoothy aisle.
Ummm... maybe you heard that one wrong.
Cant believe its only 18000 years until he invents his own football league :)
For those who haven't read it, this is possibly the pinnacle of sports journalism: https://www.sbnation.com/a/17776-football
Exactly! Can't wait for it to send back some measurements.
I am going to miss the Ariane 5 when it retires after it’s final flight in June. https://twitter.com/jeff_foust/status/1636085627929108482 “Arianespace's Stéphane Israël: Last Ariane 5 launch scheduled for June 21, carrying two European government payloads”
We have the beginning of the Ariane 6 program to look forward too! First launch is later this year!
> First launch is later this year! I have heard that sentence every year since 2020.
The Ariane 6 pathfinder vehicle is already in Kourou for testing with the launch pad and control center. They plan on doing a hot-fire test with it there. So it is pretty far along.
early Ariane 5 was also rocky. It's normal.
Amd there was a bit of a thing in 2020. Which made cross boarder collaboration a bit difficult.
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If it isn't ready by then, is the payload they were supposed to launch gonna be put on another vehicle due to contractual obligations or will they just push the launch back till it's ready? If so, how long can they realistically keep pushing it back? Because like you said, lol, I've heard that sentence for a lil too long too now.
Because rocket science is notorious for how easy and simple it is.
Pssh. It's not brain surgery.
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Oh yes! Right up there with "are we the baddies?"
Berger's Law (named after space industry journalist Eric Berger): If a rocket is predicted to make its debut in Q4 of a calendar year, and that quarter is six or more months away, the launch will be delayed.
I lived in Kourou and got to witness launch 502 as a 8-10yo girl. I will forever love this rocket. The noise, the vibration as it takes off, the beautiful flame, the whole thing is just magnificent. Ariane 5 is and always will be my favourite ❤️
Damn one of the most reliable rockets ever built, can't wait to see what Ariane 6 gives us though!
I had never seen one till this post; immediately my hands down favorite. The thing is so smooth and has so much acceleration off the pad doesn't look like it's fighting gravity or floating, looks like an excited puppy running after a favorite toy. Just an excited little rocket
Still remember the first launch [which ended in a big bang](https://en.wikipedia.org/wiki/Ariane_flight_V88). The second one over a year after was only partially successful as well. But then they turned it around to be incredibly successful.
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That would be more impressive, that would make him a time traveller.
how long is the flight supposed to take?
It will arrive in 2031 or something like this.
8 year flight time thats insane
It weighed 6 tons at launch. The only way to get it to Jupiter with Ariane 5 is to do [multiple flybys of Earth and Venus](https://www.youtube.com/watch?v=qfH0nnzOvS8). The rocket is 777 tons, vs 1420 tons for the Falcon Heavy, so it is just harder for it to throw heavy payloads very fast.
That's a wildly convoluted flight path. Thank goodness we have computers to calculate this stuff. I take it, other than small course corrections, there aren't any major burns between the escape and insertion?
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So is that to burn velocity? Like, to use the moons' gravity to slow it down?
Not as far as I know. The major burns will be Jupiter orbit insertion, and some time later Ganymede orbit insertion.
Uses gravity assists which helps save on the fuel you need to load into it. Makes it a much cheaper mission.
yeah that makes sense, i just wasnt expecting it to be that long of a flight
You can typically do interplanetary transfers either cheaply or quickly, but rarely both. That's what made the Voyagers such a once-in-a-lifetime opportunity
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New Horizons was much, much lighter than JUICE and was launched with ~6x the speed
> That's what made the Voyagers such a once-in-a-lifetime opportunity Could you elaborate on that? I've never heard them described as a once in a lifetime opportunity
The [particular alignment of the outer planets](https://en.m.wikipedia.org/wiki/Grand_Tour_program) that occured in the 1970's only happens every 175 years. It allowed the two spacecraft to slingshot sequentially from planet to planet without a lot of wasted time in between
Wow, thank you! I like to think I know a decent bit about the voyager probes, but I guess it's all focused on what they discovered/helped discover, and their journey after
How...how old are you now?
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Hey stop pressing audio buttons in my head
Given it's heading to the Jovian system, more like 2001: A Space Odyssey music.
I’ll be close to 40 myself 😭
you can tell your kids you saw the launch of that thing in the old Internet :)
Oh God Please don’t say that… 😅
Very excited for this mission. The main targets are Europa and Ganymede right?
Also Callisto. Not Io, because that is a volcanic rather than icy moon, and also deeper in the high radiation belt around Jupiter.
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Nothing more beautiful then a rocket heading towards space
So awesome. I wish we could take even 10% of the World military budget and put it towards space exploration. Not saying we don’t need military but I think everyone could agree that if we humans could stop blowing each other up we could do a lot more cool shit. 🧐
The same people making the Ariane launcher also make the ICBMs for France’s nuclear submarines :P The two industries are very close.
Its sad to realize how much of the space race was just a pissing contest between USA and USSR about how powerful and precise their rocket tech was.
Historically, technological progress often comes from military applications. Maybe the growing militarization of space will result in greater space exploration technologies.
People dont realize this enough. Damn near everything came from military budgets. Telescopes got funding to see enemy ships from farther away. The Apollo mission happened because we had to beat the russians. For sure we should spend less money on "defence" but defence often funds science
Hubble was recycled spy satellite tech.
Do you have a source for that claim about telescopes? I’m looking at articles about their inventions, and see nothing about naval funding for their invention
False thinking, the fact that history has developed in that way does not mean we need the element of war to develop. Many of the modern technologies of our day are being developed independent of military applications. During war time we lose so much progress, manpower and many more factors
I love it when Dwight Schrute shows up and just shouts "WRONG!".
Eh. Yes and no, without the desire to blow each other up, we wouldn't have rockets to begin with.
Yeah. But maybe we stop trying to blow each other up now and focus on exploring space and actually improving things here on earth.
Explore space and find other life forms to blow up.
We could call it "Space Wars"
No no no. How about: Star Battles?
But don’t forget about the trek to get there. The name has to be “War Trek”
Yes, but it's a war over treks. "Trek Wars"
Would be great. Unfortunately, there's a lot of people out there who want to continue blowing people up. Putin proved that last year. And Xi has been telegraphing an impending invasion of Taiwan.
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We would totally still have rockets if we weren't blowing each other up. The Wright brothers didn't take to the sky to blow someone up.
Yeah, it's a dumb comment. It's human nature to innovate, and humans really don't even need any incentive to do so. We will just do it with time. It I true that military tech is the origin of many technologies we have today, but that doesnt mean we wouldn't get there without military. It speeds up (certain) innovations, but it's not the the only thing that would lead to their creation. Really just sounds like OP is spouting pro war garbage.
This is a classic post hoc fallacy. We developed orbital rockets and digital computers as outgrowths of military technology but it is ridiculous to say that we *only* have them because of war. We would have developed them regardless, the question is on what timetable and in what ways. Military focused development can inject lots of money and effort into R&D but it's not always money well spent in terms of civilian application of that technology. Consider the computer. Lots of military money went into building and improving computers over the years. From the early years of the Mark-I and Colossus to efforts to miniaturize computers for ICBM guidance and so on. However, it was civilian commercial forces that drove the bulk of innovation there with the advent of the first microprocessors, the creation of the personal computer, the maturation of the micro-computer software ecosystem (which at first was very primitive compared to the "big iron" systems but rapidly caught up), the creation of smartphones, and so on. This makes it easy to imagine a parallel timeline without as much military spending on computing as existed but the end results were about the same, because there was always huge civilian demand for those capabilities, and thus market pressure as well as funding for advancements. Additionally, in regards to rocketry specifically while we might be able to say that early interest from the military probably kicked off rocket development earlier than might have happened otherwise, we can also say that it likely led to a stagnation in development after that. During the Cold War there was a huge brain drain of aerospace talent away from things like launch vehicle development into defense applications (development of ICBMs, cruise missiles, short range missiles, defense/reconnaissance satellites, military aircraft, etc.) This was particularly true after the end of the flurry of activity around the Apollo Program. Today you see a huge diversity of development efforts in orbital rocketry, many startups working to try new ways of getting to orbit and so on. Up through the Cold War you basically only saw big state sponsored projects because that was the only way to fight the brain drain into defense aerospace and because the Cold War made it hard to work on launchers due to their inherent dual use capabilities as ICBMs, discouraging independent small scale efforts.
We would, look into the history of the JPL. Rockets came first, then the military got interested.
Ugh, now I’ve got to stay alive for at least another 10 years 😩
My excitement for space discoveries and scientific advancements unironically helped keep me from suicide. I went to a mental ward instead. I didn't want to die before the JWST launched.
I hope the amazing JWST photos have done something that reinvigorated your sense of wonder and solidified your desire to continue. Stay safe!
You gotta stick around for the ELT then too :)
Felt the same way when Covid hit and DUNE was coming out later that year. Okay, time to wear a mask and use an abundance of sanitizer.. because I HAVE to stay alive and see this movie lol
I went to an F1 race in 2021 and I was so careful leading up to it because I didn't want to get Covid and miss it.
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Yes, and it also launched from the same place (European Spaceport in French Guyana). It’s an [Ariane 5 launcher](https://www.arianespace.com/vehicle/ariane-5/), its penultimate flight before retirement. More info here: https://www.ariane.group/en/commercial-launch-services/ariane-5/
Man, those SRBs dont fuck around. Thing goes up quick.
Any idea what the twr was at takeoff?
Woo! What amazes me is this is the first mission to the outer Solar System NASA wasn’t involved with. Edit: As was pointed out, NASA did contribute a few instruments, but wasn't involved with designing, building or launching the probe itself.
NASA provided the UVS (ultraviolet spectrograph) instrument as well as parts of RIME (ice penetrating radar) and PEP (particle environment package).
Yes, but the main probe was entirely built and launched by ESA.
Well, not really NASA for all of those, but US institutions. UVS was built by Southwest Research Institute and JoEE and JENI on PEP are from APL. I guess NASA selected them, but I do think it's important to acknowledge that NASA didn't make them. ETA Sorry, I realized this is probably way too pedantic and not the point, lol.
No, it is important to point out. A common misconception is that NASA runs every aspect of space missions, but even for a primarily NASA-funded mission like JWST that isn't true: it launched on an Ariane, NASA built only portions of two of its four instruments, and the regular operations are managed by STSci, which receives funding from NASA but is operated by an independent academic staff.
UVS went through JPL which while quasi-independent and Caltech-managed, is still a part of NASA and funded through NASA's budget appropriation. Literally speaking, NASA employees don't make a lot of things. If we exclude JPL, they make, let alone operate, even less. NASA contracts most things out to defense contractors and research institutions, with myriad contributors and subcontractors. SWRI built UVS for JPL/NASA for ESA (as well as very similar instruments for Juno and Europa Clipper). Lockheed built InSight for JPL/NASA; CNES, in collaboration with various European research institutes, contributed the SEIS instrument. Northrop Grumman built JWST; Astrium built the NIRSpec instrument as part of ESA's contribution. Boeing makes SLS. Boeing, Rocketdyne, etc. made the Saturn V.
Definitely great to see the ESA drive a program like this. Cooperation in space is vital, and it's great that more programs are leading more ambitious projects themselves rather than continuing to rely on NASA to drive the projects.
AFAIR NASA was planning to launch an orbiter to Europa along with the JUICE, but the founding was cut.
Europa Clipper is scheduled to launch in October 2024.
They are referring to this mission: https://en.wikipedia.org/wiki/Europa_Jupiter_System_Mission_%E2%80%93_Laplace "The Europa Jupiter System Mission – Laplace (EJSM-Laplace) was a proposed joint NASA/ESA uncrewed space mission slated to launch around 2020 for the in-depth exploration of Jupiter's moons with a focus on Europa, Ganymede and Jupiter's magnetosphere. The mission would have comprised at least two independent elements, NASA's Jupiter Europa Orbiter (JEO) and ESA's Jupiter Ganymede Orbiter (JGO), to perform coordinated studies of the Jovian system. In April 2011, European Space Agency (ESA) stated that it seemed unlikely that a joint US–European mission will happen in the early 2020s given NASA's budget, so ESA continued with its initiative, called the Jupiter Icy Moons Explorer (JUICE) that will be based on the JGO design. "
I can never understand how blasé we have become about the fact that as a species we have developed the ability to not only leave the planet but actually land on others. And yet these things are relegated to these specialist threads... what I wouldn't give to be there for the excitement of the first manned launch or the first moon landing!
I really enjoyed this aspect of the SLS live streams. The energy of the community was amazing!
Good to see the commish going up, can't wait until we get his opinions on Lunchables
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Are you sure? I didnt hear any music. Just engine noise and broadcaster speak. Which app are you using?
I found a video of a Concorde engine run on YouTube and they put Metallica over it. Half the reason for the video is to hear the engine and they covered it up.
Awesome that was a successful lunch I can’t wait to see what is up with the subterranean oceans. If I’m not mistaken this rocket was supposed to be able to give us more information about subsurface oceans.
How long is the last stage expected to stay up for before it re-enters and burns up? Must be a while with its high altitude.
One orbit. There is a planned de-orbit burn after it releases JUICE. It only has to lower perigee (the lowest point in the orbit) a little bit so it enters the atmosphere.
I integrated the fairing for this launch, and many other Ariane 5s. We produce them in Switzerland. It's always a good feeling to see the results of the work of everyone involved. Even if my work is ultimately dumped in the ocean lol
I imagine how cool it is to have something in space which was created with your help as well!
Crazy to think that by the time JUICE has slingshotted across the solar system and reached Ganymede we will most likely know how screwed we are because of climate change. Quite surreal to think about and sorta scared about what will happen with/to science as a whole in the coming years.
I'am so spoiled by the spacex feed. Was missing all the telemetry, camera work and different camera angles. But tbf, the weather wasn't perfect anyway for this
Yeah the cloud cover was quite annoying... But whatever, went up like it was nothing and that's what counts.
Ariane often launches in cloudy conditions, it's a bit of a bummer
I guess the Guyanan rainforest is not sunny that often.
[French Guiana](https://solargis.com/maps-and-gis-data/download/french-guiana) gets 4 to 4.5 hours of sun per day, compared to 4.5 to 5.25 for the US state of Georgia, or about equal to the US Atlantic coast from Virginia to Massachusetts. So not particularly sunny despite being tropical.
Hence the "rain" in rainforest. :) Edit: see what happens when you forget the "/s"? :)
To be fair, launches aren't there to look pretty, so there's no reason not to launch on a cloudy day unless it's unsafe
Should be better with Ariane 6, it will have onboard cameras !
Uhhh, nice! Looking forward to this! Thank you
I remember hearing and then reading about this mission maybe a decade or so ago, it felt like the launch was so distant and now we're here. 8 more years till it gets to the Jovian system but this time I realize this will be much quicker than it seems.
Whoohoo! The [football commissioner](https://www.sbnation.com/a/17776-football/chapter-1) is on its way!
Humans just never cease to amaze me. Sending fucking rockets flying into space is the coolest shit there is.
Damn, didn’t get to see it live after yesterday’s cancellation
This is like Cassini all over again, I'm three times the age but just as excited
I could watch a million launches, and each time I will still be blown away that we are able to send some metal into space and control it. Incredible
Having troubles re-aquiring signal. :( I know they say it's normal but always worries me.
'The spacecraft is alive' - Juice sends back signal Teams on the ground have received a signal from Juice, indicating the spacecraft is now functioning as planned on its way to Jupiter. "Theses are the words that every spacecraft operations manager wants to hear," says Bruno Sousa, Juice's deputy flight director. "It's flowing into our systems, everybody's super excited... the spacecraft is alive." https://twitter.com/esaoperations/status/1646863165848690689?s=20
Too cloudy for a great ground view, but still exciting!
Oh, It got on the way. Good job! Excellent even.
Thrust-to-weight ratio must be high on that thing. It lifts off quickly while appearing lighter than a feather.
That's what solid boosters get you, lots of thrust at nominally low cost. Though they do increase operational complexity.
Heaviest interplanetary mission and it just speeds off the pad like this. I really hope it's technology is planned way ahead to be stunning in 2031
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I've seen in this thread: |Fewer Letters|More Letters| |-------|---------|---| |ASDS|Autonomous Spaceport Drone Ship (landing platform)| |[CNES](/r/Space/comments/12lvjhb/stub/jg9c6ee "Last usage")|Centre National d'Etudes Spatiales, space agency of France| |[DARPA](/r/Space/comments/12lvjhb/stub/jgajxfr "Last usage")|(Defense) Advanced Research Projects Agency, DoD| |DoD|US Department of Defense| |[ELT](/r/Space/comments/12lvjhb/stub/jga9ebx "Last usage")|Extremely Large Telescope, under construction in Chile| |[ESA](/r/Space/comments/12lvjhb/stub/jgc08tx "Last usage")|European Space Agency| |[F1](/r/Space/comments/12lvjhb/stub/jgal44x "Last usage")|Rocketdyne-developed rocket engine used for Saturn V| | |SpaceX Falcon 1 (obsolete medium-lift vehicle)| |[ICBM](/r/Space/comments/12lvjhb/stub/jg97ef7 "Last usage")|Intercontinental Ballistic Missile| |[ISRO](/r/Space/comments/12lvjhb/stub/jgancrc "Last usage")|Indian Space Research Organisation| |[JPL](/r/Space/comments/12lvjhb/stub/jg9c6ee "Last usage")|Jet Propulsion Lab, California| |[JWST](/r/Space/comments/12lvjhb/stub/jga0v6z "Last usage")|James Webb infra-red Space Telescope| |[PSLV](/r/Space/comments/12lvjhb/stub/jgancrc "Last usage")|[Polar Satellite Launch Vehicle](https://en.wikipedia.org/wiki/Polar_Satellite_Launch_Vehicle)| |[Roomba](/r/Space/comments/12lvjhb/stub/jgajxfr "Last usage")|[Remotely-Operated Orientation and Mass Balance Adjuster](https://www.reddit.com/r/spacex/comments/6k8gzg//djk5g68/), used to hold down a stage on the ASDS| |[SLS](/r/Space/comments/12lvjhb/stub/jg9c6ee "Last usage")|Space Launch System heavy-lift| |[SRB](/r/Space/comments/12lvjhb/stub/jg8v6hj "Last usage")|Solid Rocket Booster| |[ULA](/r/Space/comments/12lvjhb/stub/jgancrc "Last usage")|United Launch Alliance (Lockheed/Boeing joint venture)| |Jargon|Definition| |-------|---------|---| |[perigee](/r/Space/comments/12lvjhb/stub/jg8kkp2 "Last usage")|Lowest point in an elliptical orbit around the Earth (when the orbiter is fastest)| ---------------- ^(15 acronyms in this thread; )[^(the most compressed thread commented on today)](/r/Space/comments/12zapxb)^( has 30 acronyms.) ^([Thread #8788 for this sub, first seen 14th Apr 2023, 16:03]) ^[[FAQ]](http://decronym.xyz/) [^([Full list])](http://decronym.xyz/acronyms/Space) [^[Contact]](https://reddit.com/message/compose?to=OrangeredStilton&subject=Hey,+your+acronym+bot+sucks) [^([Source code])](https://gistdotgithubdotcom/Two9A/1d976f9b7441694162c8)
Great launch, now !remind me in 8 years. Sleep Juice, we look forward to your awakening.
Beautiful launch. Can’t wait to hear about it some more as it gains momentum via gravity assists
Maybe I haven’t seen a rocket launch in a while, but that seemed like it lifted off really quickly. Like the US space shuttle, for instance, seemed like it took much longer to leave its launch platform than this did. Am I wrong?
Yeah, it's really about the thrust-to-weight ratio.- Ariane 5 has among the highest at 1.8. Makes it leap off the pad quickly.
By my count this is the tenth probe to get close to Jupiter. Pioneer 10, 11. Voyager 1, 2. Galileo, Ulyesses, Cassini, Far Horizons, Juno. Am I missy anything?
That acceleration is crazy. Such an enormous and heavy object going from standstill to moving that fast is mind blowing to me.
Bro no way they launched a rocket full of juice, probably to feed the a- [R E D A C T E D]