The Universe
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10 terms
Terms | Definitions |
|---|---|
 Galaxy | a huge group of single stars, star systems, dust and gas bound together by gravity |
| Spiral Galaxy | Like a pinwheel. ex. the Milky Way |
| Elliptical Galaxy | Round like flat pancakes |
| Irregular Galaxy | having no defined shape |
| Quasar Galaxy | very far away and look "something like" stars |
| Universe | everything that we know of and everything else we will discover |
| Big Bang Theory | the universe was formed in an instant billions of years ago in an enormous explosion |
| Our Solar System | about 5 billion years ago, a giant cloud of gas and dust formed this |
| What Will Happen to the Universe | scientists believe the universe will likely expland forever |
| Our Galaxy | We cannot get far away enough from this to take an actual photograph. |
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