Space Station >> Space Station Glossary
Space Station Glossary V
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
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Variable Star:
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A stars whose glow (brightness) changes with time.
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Velocity:
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The speed of a thing or an object moving in a specific direction. A car traveling at 35 miles per hour is a dimension of speed. Observing that a car is itinerant 35 miles per hour due north is a measurement of velocity.
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Venus:
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An inner, terrestrial (rocky) planet, which is slightly smaller than Earth. Located between the orbits of Mercury and the Earth, Venus has an extremely thick atmosphere that is enclosed by a layer of clouds that produce a “greenhouse effect” on the planet. Venus’s surface hotness is roughly 480° C (900° F), creation it the hottest planet in the solar system.
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