Europa, a moon among many circling Jupiter, appears to have an ocean hidden under its frozen surface crust. NASA is investigating ideas on how best to return samples of ice from comets, Mars and other solar system objects. Credit: NASA
| |
| |
Europa, a moon among many circling Jupiter, appears to have an ocean hidden under its frozen surface crust. NASA is investigating ideas on how best to return samples of ice from comets, Mars and other solar system objects. Credit: NASA |
|
|
|
