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Stars and Galaxies
| Question | Answer |
|---|---|
| One full orbit of an object around another object | Revolution |
| An imaginary center line around which the Earth rotates | Axis |
| One whole spin of an object on its axis | Rotation |
| A frozen mass of ice and dust orbiting the sun | Comet |
| An indication of the fraction of the moon that is illuminated as seen from Earth | Moon Phase |
| A huge system of stars, gas, and dust held together by gravity | Galaxy |
| Distance light travels in one year | Light Year |
| A gigantic explosion that occurs near the end of the life of some stars | Supernova |
| A point in space that has such strong gravity that nothing within a certain distance of it can escape. | Black Hole |
| A cloud of gas and dust in which new stars form | Nebula |
| A group of stars that form a pattern | Constellation |