Impact Craters Meteorites & Asteroids
Terrestrial Planets. Planetary size and heat loss Large planets retain internal heat longer Small planets cool off quickly.
Chapter 7c Mars: Freeze-dried
GEOLOGIC TIME - Earth is 4.65 Ga old
Ancient eroded layered craters Long/lat : (ranked by distance from ellipse center)
Impact Craters Meteorites & Asteroids. Meteorite Impacts* Meteoroids < 1m in diameter tend to burn up in atmosphere Meteoroids > 1km can cause much damage.
