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| VY Canis Majoris Sweden. August 27 2012 21:59. Posts 30 | Profile # |
Jupiter, you're next!
![[image loading]](http://i.imgur.com/FFCpT.jpg)
EUROPA JUPITER SYSTEM MISSION (EJSM)
In the next two decades, NASA and ESA (European Space Agency) will launch the Europa Jupiter System Mission (EJSM) a joint space exploration project to Jupiter, or more specifically to its moons.
NASA will spearhead the Jupiter Europa Orbiter (JEO) and ESA will lead the Jupiter Ganymede Orbiter (JGO).
JEO and JGO will execute a choreographed exploration of the Jupiter System before settling into orbit around Europa and Ganymede, respectively. JEO and JGO carry 11 and 10 complementary instruments, respectively, to monitor dynamic phenomena (such as Io’s volcanoes and Jupiter’s atmosphere), map the Jovian magnetosphere and its interactions with the Galilean satellites, and characterize water oceans beneath the ice shells of Europa and Ganymede.
Goals
1. Determine Whether the Jupiter System Harbors Habitable Worlds. The fundamental theme for EJSM can be further focused into science objectives relating to habitability (focusing on Europa and Ganymede). The main science objectives supporting this goal are:- Characterize sub-surface oceans
- Characterize the ice shells and any subsurface water
- Characterize the deep internal structure for Ganymede and the intrinsic magnetic field
- Compare the exospheres, plasma environments, and magnetospheric interactions.
- Determine global surface compositions and chemistry
- Understand the formation of surface features, including sites of recent or current activity, and identify and characterize candidate sites for future in situ exploration.
2. Characterize the Processes Within the Jupiter System. The Jupiter system includes a broad diversity of objects, including Jupiter itself, 55 currently known outer irregular satellites, the Jovian ring system, four small inner satellites, and the four large Galilean Satellites: Io, Europa, Ganymede, and Callisto. The main science objectives supporting this goal are:- Understand the Jovian satellite system, especially as context for Europa and Ganymede.
- Evaluate the structure and dynamics of the Jovian atmosphere.
- Characterize processes the Jovian magnetodisk/magnetosphere.
- Determine the interactions occurring in the Jovian system.
- Constrain the origin of the Jupiter system.
JUPITER EUROPA ORBITER (JEO) CONCEPT
JEO is the NASA element of the EJSM. It is designed to follow-up on the major discoveries of the Galileo and Voyager missions at Europa, especially its ocean. JEO would be built to withstand the intense radiation in Europa orbit, and would consist of an orbiter with 11 science instruments designed for extensive mapping of Europa. On the way to Europa, JEO would tour the Jovian system and make routine and frequent observations of Jupiter, its satellites and its environment.
JEO would launch in February 2020 on an Atlas V 551 and, using a ballistic trajectory with Venus-Earth-Earth gravity assists (VEEGA), arriving at Jupiter in December 2025. Jupiter Orbit Insertion (JOI) begins a 30 month Jovian system tour followed by a 9 month science mapping phase after Europa Orbit Insertion (EOI) in July 2028. The orbiter would ultimately impact the surface of Europa after succumbing to radiation damage or running out of orbit maintenance fuel.
Objectives
- Europa’s Ocean: Characterize the extent of the ocean and its relation to the deeper interior
- Europa’s Ice Shell: Characterize the ice shell and any subsurface water, including their heterogeneity, and the nature of surface-ice-ocean exchange
- Europa’s Chemistry: Determine global surface compositions and chemistry, especially as related to habitability
- Europa’s Geology: Understand the formation of surface features, including sites of recent or current activity, and identify and characterize candidate sites for future in situ exploration
- Jupiter System: Understand Europa in the context of the Jupiter system
JUPITER GANYMEDE ORBITER (JEO) CONCEPT
JGO is the ESA element of the EJSM. JGO will be built to accommodate the moderate radiation environment outside of Europa orbit. It would consist of a solar powered orbiter with 10 science instruments designed for remote sensing of Jupiter and the inner satellites and for extensive mapping of Ganymede. Prior to Ganymede arrival, JGO will intensely investigate Callisto from a resonant orbit, and make extensive observations of the Jupiter system to complement those of JEO.
JGO launches in March 2020 on an Ariane 5 and, using a ballistic trajectory with Venus-Earth-Earth gravity assists (VEEGA), arrives at Jupiter in February 2026. Jupiter Orbit Insertion (JOI) begins a 11 month Jupiter science phase followed by a 13 month Callisto science phase and Ganymede Orbit Insertion (GOI) in May 2028. At Ganymede, both elliptical and circular orbit science phases will last about 9 months. The orbiter will ultimately impact the surface of Ganymede after running out of orbit maintenance fuel.
Objectives
- Ganymede: Characterize Ganymede as a planetary object including its potential habitability.
- Satellite System: Study the Jovian satellite system.
- Jupiter: Study the Jovian atmosphere.
- Magnetosphere: Study the Jovian magnetodisk / magnetosphere
- Jupiter System: Study the interactions occurring in the Jovian system.
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| nttea Sweden. August 27 2012 22:11. Posts 4067 | Profile Blog # |
cool beans! will something actually land on the moon or will it just buzz around up there taking measurements?
edit: double checked (again) and apparently something will land on the moon! i should read op more carefullyLast edit: 2012-08-27 22:12:00 |
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| soverelgne United Kingdom. August 27 2012 22:16. Posts 44 | Profile # |
| This is pretty much awesome. |
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| Zergneedsfood United States. August 27 2012 22:18. Posts 5352 | Profile Blog # | |
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| FallenStar Spain. August 27 2012 22:21. Posts 56 | Profile # |
I think they shouldn't let the JEO impact on Europe, it could contaminate its surface with microorganisms, and it seems silly, but that's why they made Galileo (?) impact on Jupiter, to prevent it from contaminating Europa. It's very unlikely for it to happen, but we better prevent it.
And man, you're all the time making this kind of announcements, it's impressive how much you know about this topic :O |
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 {CC}StealthBlue United States. August 28 2012 05:26. Posts 15335 | Profile Blog # |
I thought the Gaymede mission was suspended for the JIME(Jupiter Icy Moon Explorer)?
EDIT: Or combined...Last edit: 2012-08-28 05:27:29 |
| | It'll take a lot more than words and guns ... The hands of many must join as one, and together we'll cross the river. |
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| starfries Canada. August 28 2012 05:38. Posts 2617 | Profile Blog # |
On August 27 2012 22:21 FallenStar wrote:
I think they shouldn't let the JEO impact on Europe, it could contaminate its surface with microorganisms, and it seems silly, but that's why they made Galileo (?) impact on Jupiter, to prevent it from contaminating Europa. It's very unlikely for it to happen, but we better prevent it.
And man, you're all the time making this kind of announcements, it's impressive how much you know about this topic :O
it's not too farfetched, apparently some bacteria can survive a trip through space for quite a long time.
http://www.popsci.com/technology/article/2010-08/bacteria-survive-553-day-exposure-exterior-iss |
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| neobowman Canada. August 28 2012 05:42. Posts 2862 | Profile Blog # |
On August 28 2012 05:38 starfries wrote:
Show nested quote +On August 27 2012 22:21 FallenStar wrote:
I think they shouldn't let the JEO impact on Europe, it could contaminate its surface with microorganisms, and it seems silly, but that's why they made Galileo (?) impact on Jupiter, to prevent it from contaminating Europa. It's very unlikely for it to happen, but we better prevent it.
And man, you're all the time making this kind of announcements, it's impressive how much you know about this topic :O
it's not too farfetched, apparently some bacteria can survive a trip through space for quite a long time. http://www.popsci.com/technology/article/2010-08/bacteria-survive-553-day-exposure-exterior-iss
I thought NASA specifically sterelized all spacefaring equipment before launch for this exact purpose? |
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| Ljas Finland. August 28 2012 05:46. Posts 201 | Profile # |
On August 27 2012 22:11 nttea wrote:
cool beans! will something actually land on the moon or will it just buzz around up there taking measurements?
edit: double checked (again) and apparently something will land on the moon! i should read op more carefully
It lands like a ballistic missile, unfortunately. Collisions with celestial bodies aren't all that amazing nowadays. |
| | Success is counted sweetest by those who ne'er succeed. |
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| GT350 United States. August 28 2012 16:13. Posts 270 | Profile # |
| Interesting! Do they know how much this will cost already? I'm in for space missions, but I hope they also spend some for "Earthly" concerns. Go NASA! |
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| ApocAlypsE007 Israel. August 28 2012 16:28. Posts 775 | Profile # |
| It's about damn time they send a probe to explore the most interesting non Earth body in the Solar System. Talking about Europa of course. Last edit: 2012-08-28 16:29:49 |
| | I'm playing the game, the one that will take me to my end, i'm waiting for the rain, TO WASH-- WHO I AM!!! |
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| S:klogW Austria. August 28 2012 16:44. Posts 342 | Profile # |
On August 28 2012 16:28 ApocAlypsE007 wrote:
It's about damn time they send a probe to explore the most interesting non Earth body in the Solar System. Talking about Europa of course.
European girls bodies are the best! 
Thanks for this information. I've read, more like glanced haha, at an article in Astrobiology, about an alternative to the proposed EJSM. The problem he had with the missions are that they are very expensive, which NASA recognizes, and they are sort of "no plan B" type that everything depends on the individual missions that when a system, sequence, part, software, or hardware fails, the entire mission is doomed. I'll share it in detail here after I actually read it already. |
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| B1-66ER August 29 2012 19:25. Posts 22 | Profile Blog # |
| May the thirst for knowledge and adventure never end. |
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 Nekovivie United Kingdom. August 29 2012 19:26. Posts 2257 | Profile # |
| I'm gonna be a bit of a retard asking probably, but do gas giant planets have any landmass? |
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| Tobberoth Sweden. August 29 2012 19:30. Posts 4545 | Profile # |
On August 29 2012 19:26 Nekovivie wrote:
I'm gonna be a bit of a retard asking probably, but do gas giant planets have any landmass?
Well, the farther inside the gas giant you go, the higher the pressure. I don't think you'd get anything you could really call land, but I guess it would be something like gas -> liquid -> lavalike liquid -> core. |
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| mdb August 29 2012 19:30. Posts 3572 | Profile Blog # |
| Yes, in their core most probably. |
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| Flamingo777 United States. August 29 2012 19:34. Posts 1140 | Profile # |
| The Mars mission has really sparked a lot of new interest in/support for space exploration, it seems. |
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| Pandemona England. August 29 2012 19:34. Posts 9670 | Profile Blog # |
Jupiter <33333
Cannot wait to see the pictures, going be siick. Space Travel is on the rise!! Last edit: 2012-08-29 19:34:56 |
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