Mars
Some basic facts:
- radius ~ 0.5 REarth
- mass ~ 0.1 MEarth
- distance from sun ~ 1.5 AU.
What can we conclude? Is Mars made of rock, ice, or what? Should it have a thick atmosphere?
Other basic facts:
- cold to cool: 133 K to 293 K.
- Mars has two small moons.
Why do you suppose that white stuff is there in the lower right of the
picture?
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
soper@bovine.uoregon.edu