ASTR 5 Chapter Notes - Chapter 7: Ultraviolet, Kuiper Belt, Chemical Energy
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In our solar system, we are looking primarily for microbes or other simple life: we have already learned enough to be confident that no other advanced civilization has. Ice is less dense than liquid water (which is why ice floats) Molecules and salts that also have charge separations dissolve in water easily. Molecules that do not have any charge separation such as molecules of oil do not dissolve in water: on earth, the charge separation property of water is critical to life. 7. 2 a biological tour of the solar system: the inner solar system. Does life seem plausible on the moon or mercury: although mercury is a planet and the moon orbits earth, the two worlds share many characteristics. Mercury days and nights that last about three earth months each: daytime temperatures reach 425 c, far too hot for liquid water. Earth-like landscape: both planets have at least some potential for supporting past and present life, although.
