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| Question | Answer |
|---|---|
| milky way galaxy | is the galaxy in which we live.it is a spiral shaped galaxy that contanis about 200 billion stars,including our sun. |
| asteroid | is a large rock in outer space. |
| comet | a small frozen mass of ice and dust orbiting the sun. |
| terrestrial | relating to land |
| orbit | to travel in a curved path around the sun or planet. |
| rotation | one complete turn on an axis. |
| satellite | a moon that orbits a planet |
| sun | a star around which earth and other planets revolve.it produces heat,light, and energy |
| gas giant | any of the second four plants from the sun,which are made of gas. |
| gravity | the force that pulls objects toward each other |
| star | an object in space that produces its own heat and light |
| galaxy | a group of millions of stars |