NASA science update about Europa

View previous topic View next topic Go down

NASA science update about Europa

Post by Lazarus on 15th November 2011, 7:03 pm

NASA Hosting Science Update about Jupiter's Icy Moon Europa

NASA will host a Science Update at 1 p.m. EST on Wednesday, Nov. 16, to discuss new theories concerning Jupiter's icy moon Europa. The event will be in NASA's James E. Webb Auditorium at 300 E St. SW in Washington.
avatar
Lazarus
dG star
dG star

Number of posts : 2805
Registration date : 2008-06-12

View user profile

Back to top Go down

Re: NASA science update about Europa

Post by Sirius_Alpha on 15th November 2011, 7:29 pm

All forms of exobiology speculation in 3... 2... 1...
Laughing

_________________
Caps Lock: Cruise control for 'Cool'!
avatar
Sirius_Alpha
Admin
Admin

Number of posts : 3443
Location : Earth
Registration date : 2008-04-06

View user profile http://solar-flux.forumandco.com/

Back to top Go down

Re: NASA science update about Europa

Post by Lazarus on 16th November 2011, 1:58 pm

Given NASA's track record on astrobiology, I'm not holding my breath...
avatar
Lazarus
dG star
dG star

Number of posts : 2805
Registration date : 2008-06-12

View user profile

Back to top Go down

Re: NASA science update about Europa

Post by Lazarus on 16th November 2011, 2:08 pm

NASA Probe Data Show Evidence of Liquid Water on Icy Europa

Apparently there may be a large lake under Thera Macula. Ice shell on Europa is probably thick.
avatar
Lazarus
dG star
dG star

Number of posts : 2805
Registration date : 2008-06-12

View user profile

Back to top Go down

Re: NASA science update about Europa

Post by Diakonov on 20th November 2011, 9:54 pm

Imagine life in those "lakes" inside the thick ice! It might have many tunnels linking those lakes with the subterranean ocean. If there's life, life could also be present in those "lakes". I prefer call them aquifers. Imagine finding complex life moving through these aquifers! If there's complex life, these aquifers could have been important for the evolution of european life, like the development of creatures having limbs, like arthropods. Limbs that could make them walk through the ice.

If these aquifers are real, it might be possible that the great european ocean might be at least hot, to make the ice melt that way. Or there might have some regions with much volcanic activity, that would make the ice melt in some regions. But for that to happen, the ocean should not be so thick, or the heat couldn't reach the ice layer. So the ocean couldn't be hundreds kilometers thick. It might be in maximum some kilometers, more or less like the average depth of Earth oceans, from an average 4 to 7 kilometers.

Otherwise, to the ocean be hundreds kilometers thick, the mantle (ocean floor) should be small and very active, or water being mixed with another substance that would make the melting point to drop too much, like mixture of water and ammonia, and also the fact that this ocean would be very salty, droping even more the freezing point. Maybe this is the reality, and due to the low gravity of that world, the subterranean volcanoes be very high to the point that the heat could reach the ice layer, distant from the ocean floor.

Maybe european ocean floor be very rugged indeed, more or less like Mars surface compared to Earth.

Diakonov
Rock
Rock

Number of posts : 47
Registration date : 2008-10-01

View user profile

Back to top Go down

Re: NASA science update about Europa

Post by Sponsored content


Sponsored content


Back to top Go down

View previous topic View next topic Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum