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1
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The distance between two adjacent crests or troughs of a wave.
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3
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A continuous range of a single feature.
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4
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An uncrewed spacecraft that is designed to enter into orbit around another object in space.
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6
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Any human-made object placed in orbit around a body in space.
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7
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A craft designed to land on the surface of a body in space.
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8
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A reusable spacecraft that launches with the aid of rocket boosters and liquid fuel.
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9
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A small vehicle that comes out of the lander and explores the surface of a planet or moon beyond the landing site.
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10
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An uncrewed vehicle that carries scientific instruments to distant objects in space.
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