Some basic facts:
What can we conclude? Is Mars made of rock, ice, or what? Should it have a thick atmosphere?
- radius ~ 0.5 REarth
- mass ~ 0.1 MEarth
- distance from sun ~ 1.5 AU.
Other basic facts:
Why do you suppose that white stuff is there in the lower right of the
- cold to cool: 133 K to 293 K.
- Mars has two small moons.
How about its motion ?
How about its interior ?
How about its atmosphere like?
What does its surface look like?
Is there life on Mars?
ASTR 121 Home
Davison E. Soper, Institute of Theoretical Science,
University of Oregon, Eugene OR 97403 USA