The moon's Atmosphere
- there isn't any.
- holding an atmosphere is a competition between gravity
and temperature.
- gravity isn't strong enough because the Moon's mass is so small.
To understand this, we need to understand
escape velocity.
ASTR 121 Home
Davison E. Soper, Institute of Theoretical Science,
University of Oregon, Eugene OR 97403 USA
soper@bovine.uoregon.edu