How are the polar regions of Mercury and the Moon similar?
A) Both are covered by huge mare-type basins from impacts.
B) Both seem to have ice pockets in the deepest, darkest crater floors.
C) Both have bright dry ice polar caps, like Mars.
D) Both have lakes of liquid water under their regolith.
E) Both have been hit by large comets that melted there.
Question 2
If the Hubble Constant is 70 km/sec/Mpc, the accelerating universe is about 10 billion years old.
Indicate whether the statement is true or false
Taken by Hinode's Solar Optical Telescope on January 12, 2007, this image of the Sun reveals th
Moon
Rock Type Influences Weathering
New patterns of gene expression can be generated by overlapping regions containing two different gen