17 juill. 2004 - Mars exploration rovers
Description:
Spirit and Opportunity Mars rovers scientific goals were primarily to search for and characterize a wide range of rocks and soils. It cost NASA $820 million to build and launch the rovers for a 90 day mission on Mars. This information could help scientists understand the atmosphere and geosphere of Mars.Ajouté au bande de temps:
Date:
17 juill. 2004
Maintenaint
~ Il y a 21 ans