- vallis
- sinuous valley (plural: valles)
- Van Allen, James A.
- American physicist who discovered the Earth's radiation
belts (that now bear his name) with an instrument
aboard the first successful American satellite,
Explorer 1.
- vastitas
- widespread lowlands.
- Verne, Jules 1828-1905
- French writer who is considered the founder of
modern science fiction. His novels include
"Journey to the Center of the Earth"
and "From the Earth to the Moon".
- volatile
- As a noun, this refers to substances that are
gases at ordinary temperatures. In astronomy it
includes hydrogen, helium, water, ammonia, carbon
dioxide and methane.
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