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Astronomy_5
| Question | Answer |
|---|---|
| what are galaxies | collections of billions of stars |
| what is our solar system apart of | the milky way |
| what sort of shape is the milky way | spiral |
| what are black holes | the end of the lifetime of supergiant stars |
| what do black holes in the middle of a galaxy allow | stars to gain velocity |
| what does that velocity do | allows starts to orbit around and away from the center of mass |
| what is the top speed of spacecraft | 150,000 miles per hour |
| how far away is the nearest star travel | 24 trillion miles away |
| at 150,000 miles per hour how long would it take to get to the nearest star | 166 million years to get there |
| how are distances in our universe measured | light years |