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Space Vocabulary
| Questions |
Answers |
| any of the four closest planets to the sun |
inner planets |
| any of the four planets in our solar system beyond the sun |
outer planets |
| a spacecraft that gathers data without a crew |
space probe |
| a natural object that revolves around a planet |
moon |
| a rocky mass that revolves around the sun |
asteroid |
| a large, round object that revolves around the sun, but has not cleared the region around its orbit |
dwarf planet |
| an imaginary line around which an orbit spins |
axis |
