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| Pregunta | Respuesta |
| asteroid | small inactive rock orbiting a star |
| meteoroid | small partials originating from comet or asteroid |
| meteor | light resulting from a meteoroid burning up in the earths atmosphere |
| meteorite | meteoroid surviving passage through earths atmosphere |
| full moon | can see all |
| new moon | can see none |
| waxing | new moon to full moon |
| waning | full to new |
| lunar month | time the moon takes to orbit earth |
| umbra | part of earth in total eclipse |
| penumbra | part of earth in partial eclipse |
| light year | distance light travels in a year |
| how many stars in milky way | 300 billion prox |
| parallax shift | method used to calculate distance of other stars to earth |
| advantages of space telescopes | not affected by weather no light pollution no atmospheric distortion can detect radiation absorbed by the atmosphere |
| when did the universe come into existence | 13.5 billion years ago |
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