End of August I think?
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NASA's Juno Mission |OT| Now in orbit around Jupiter - New images released (9/2)
- Thread starter GK86
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End of August I think?
WeAreStarStuff
Member
August; I believe.
Orbis Tabula
Member
I don't think it was to protect a secret. It was literally to protect the moons. Crash the probe into Jupiter that way you don't accidentally contaminate the moons with terrestrial bacteria. The phrasing is pretty funny, though.
The probe could contaminate the planet with life.
This late? So we're not getting anything until then? That kinda sucks considering it just reached the planet...
Mengy
wishes it were bannable to say mean things about Marvel
Yep, that is also the reason why they will eventually purposefully crash Juno into Jupiter as well, to prevent itself from accidentally crashing onto one of the moons and thereby potentially contaminating it. Theyll crash it on purpose before Jupiters radiation renders the probe uncontrollable due to radiation damage.
They turned off all the instruments to focus on getting Juno into orbit. They can't do a normal orbit due to the amount of radiation that Jupiter gives off. So they have to do these long elliptical orbits to come in, do the Science stuff, and get out before the radiation fries the instruments.
The first elliptical is going to be 53 days. The second one too, I think. After that, every 14 days until the mission ends.
blu
Wants the largest console games publisher to avoid Nintendo's platforms.
I don't think crashed would be the correct term in this case. More like drowned.
I'm still upset about the Mars Polar Lander. I was so hyped for that (especially for the microphone).
At the time, I had my own conspiracy theories for that mission.
Also, I never heard about purposely crashing Galileo to protect a secret.
Yeah, that makes much more sense.
There's a mission to Europa in the works:
https://en.wikipedia.org/wiki/Europa_Multiple-Flyby_Mission
They're strongly investigating the possibility of adding a lander to it, but it could drive up the mission cost by as much as $1 billion. That's also without a drill.
Probably not in our lifetime, if I had to guess. I can't even imagine all the technical details of designing, sending, landing, and operating a drill large enough to get through the ice. IIRC the layer of ice is some 60 miles thick. Who knows what kind of theoretical space drill would be needed to get through that.
Well it's sort of true, when you take atmosphere out of the equation, the math becomes relatively straightforward.
AstroNut325
Member
People need to support this. Please contact your representatives and senators.
WeAreStarStuff
Member
The amount of radiation it gives off is just insane. Poor Jupiter, if only it had tried a little harder the Sol system could have been the Sols system.
Well, everything is simple when broken down to the core. But yes, it's very dismissive of a very complicated mission.
Serpens007
Member
Gaf, I dont really know much about this kind of things, so I rather ask a question probably commo.
Why in the pictures taken by Juno you can't see any stars? What cause that?
Why in the pictures taken by Juno you can't see any stars? What cause that?
Jupiter is really bright because of all the sunlight reflecting off of it. This makes the stars very hard to see as they are so much dimmer in comparison. It's basically the same reason why we can't see stars during the day on Earth.
Probably an exposure issue. If you take a picture of the sky at night, I don't think you can see stars either.
This is another good point. They could take a longer exposure image and pick up the stars in the background, but Jupiter would looked like a big white blurry mess as a result.
Cameras don't do differences in brightness very well. Most cameras can only distinguish 3 fstops, while the human eye is between 6-9.
That's why you can see what's in the shade under a tree in a bright field, but a camera will either blow out the bright part of the image or darken the shade.
They dynamic range just isn't that great unless you composite the images at different exposure values; ie HDR.
Serpens007
Member
Thank you, kind people. Every day is learning day!
yup. for sure.
Nathan_Drake
Member
The orbit path Juno will be taking:
That 3rd orbit is a tight cut-in. I would think it would be more gradual. That is awesome. Thanks!
No problem! It's a great question.
Luschient
Member
https://m.reddit.com/r/IAmA/comment...s_juno/?utm_source=mweb_redirect&compact=true
Juno team is doing an AMA over at reddit right now.
Juno team is doing an AMA over at reddit right now.
Some questions and answers from the AMA. Bold is the question.
- What specific theories about Jupiter are you most looking forward to confirming whether they were accurate or not?
I'm most interested in finding out what lurks beneath Jupiter's clouds. It's mind-blowing to think that we don't yet know what the interior is of the largest planet in the solar system. Is it rocky? Is it metallic? We just don't know. But that's exciting, and it's why we explore.
- Hey guys/gal, hearing about this is super exciting. My question may seem stupid/silly, but seriously, how much time/planning goes into a mission such as this? Especially from Launch in Florida, the gravitational slingshot, up until it enter Orbit.
Seeing this just blows my mind. How many backup plans do you have for a mission such as this if it doesn't go according to plan?
A huge amount of time and planning goes into a mission like this! I personally started thinking about the ideas that eventually became Juno in about the year 2000, after a conversation with Scott Bolton, who had already begun to contemplate the measurements we can do. Our first proposal to NASA was in 2004, and we began designing real hardware in 2006.
As far as backup plans are concerned, we always try to keep a range of possible contingencies in mind. For some of them, we make fairly detailed plans, and for some of the less likely scenarios we might just talk it over for a while and make a few notes about "what if."
5+ years of development and building. 5 years of flying through interplanetary space from Earth to Jupiter (with a gravity slingshot along the way).
- Will Juno be able to study the compositions of any of Jupiters moons?
The focus of Juno is the interior of Jupiter. JunoCam, the education/public outreach camera, will image the satellites during the course of the mission, but at lower resolution than Voyager, Galileo, or New Horizons. That said, the composition of Jupiter will be an important consideration for future missions, such as the future Europa mission to unravel the complete story about Jupiter's formation.
- I've heard that Earth's core and its magnetic field is what deflects radiation and makes it a hospitable environment. Is this true, and if so, is life impossible on planets that don't have magnetic fields?
Planetary magnetic fields (like Earth and Jupiter have) definitely do deflect some of the radiation would otherwise impact planetary surfaces. However, there is a very active debate about the overall effect of having (or not) a magnetic field on how life would develop (or not) on a planet
- Does Jupiter's massive gravitational pull make it more difficult to keep a probe in orbit?
Actually, Jupiters massive gravitational pull helps to keep our probe in orbit. When we fired our main engine last night, we were moving at 54.1 km/sec. After firing our main engine, we were moving away from Jupiter at 53.7 km/sec. That's still really fast! But that really small decrease in orbital speed was enough to put us into a 53 day orbit (instead of a Jupiter flyby). Jupiter's pull is so strong, it would be very challenging now to get out of orbit. This wasn't what I initially expected when the navigators explained to me but it does help demonstrate how different things are when you are around such a massive planet.
No thanks to him.
I'm not an expert by any means but it's fair to assume that if Europa could have life, if the probe contaminate it with Earth bacteria it could have an effect on that life forms.
EDIT: This is what they said on that AMA
Robin64
Member
Firstly, if you do find something during a later exploration you want to be sure it came from that place and not some earlier contamination. Secondly, there's actually a space law forbidding the contamination of other planets and moons.
abstract alien
Member
What about the other probe(or whatever it was) that was sent to Jupiter that flew through the atmosphere for a few moments before it's demise due to...whatever Jupiter does to things it doesn't like?
Galileo? I only know that, and it was also crashed onto Jupiter for the same reason. Jupiter's radiation ends up fucking the probes, so they have to end up being crashed when they are still operative.
onepiecefan
Member
The orbit path Juno will be taking:
Cool pic.
Well, excluding dealing with General relativity, most orbital mechanics is simple physics invented hundreds of years ago. At worst there are calculations that have to be calculated numerically instead of solved analytically. It in a lot of ways is easier than dealing with aerodynamics, because you don't have air residence and flow and stuff mucking up the calculations. It's why most accidents happen while launching or landing.
What makes it difficult is coordinating the orbital mechanics with all of the other technical aspects on the mission, coding the computer to pull off the manuver automatically, and doing it correct the 1st time knowing that I'd you fail you will destroy a million or possibly billion dollar machine.
Caayn
Member
Stupid question but what about the Mars rover? Didn't that contaminate Mars?
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