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Earth Science - Exploring Space

Across
The path of an object in space as it moves around another object due to gravity
A satellite in which people can live and work for long periods
Energy that travels across distances as certain types of waves
Millions of billions of stars held together in a group by their own gravity
A round pit left behind on the surface of a planet or other body in space after a smaller object strikes the surface and explodes
A device that gathers electromagnetic radiation
Space and all the matter and energy in the sky
Down
A spacecraft that is sent into a planets atmosphere
a group of stars that form a pattern in the sky
The range of colors that appears in beam of visible light when it passes through a prism
A craft design to land on a planets surface
The sun, the planets, and various smaller bodies
The distance between one wave peak and the next wave peak
An object that orbits a more massive object