Astronomical Dictionary on Letter #V

Variable Star

Any star whose brightness or magnitude varies with time. The variations can be intrinsic because of ...

Valhalla

In Norse mythology, Odin's hall, where he received the souls of slain warriors....

Venus

Planet second in order from the sun. In Roman mythology, goddess of love (Greek name, Aphrodite)....

Vent

An opening or fissure in a planet's surface through which volcanic material erupts....

Viscosity

A measure of resistance to flow....

Volcanic rock

Rock formed by eruption onto a planet's surface....