Difference between revisions of "Galaxy"
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===About Galaxies=== | ===About Galaxies=== | ||
| − | : Our home [[galaxy]] is called [[The Milky Way]]. | + | : Our home [[galaxy]] is called [[The Milky Way]] which contains around 400 billion [[star]]s. |
: '''Galaxies''' are usually held together by a large [[Black Hole]] at the centre. The [[stars]] all [[orbit]] this central [[Black Hole]]. | : '''Galaxies''' are usually held together by a large [[Black Hole]] at the centre. The [[stars]] all [[orbit]] this central [[Black Hole]]. | ||
: [[Scientist]]s believe there are over 200 billion '''galaxies''' in the [[Universe]]. | : [[Scientist]]s believe there are over 200 billion '''galaxies''' in the [[Universe]]. | ||
Revision as of 16:42, 2 November 2018
Key Stage 3
Meaning
A galaxy is a group of millions of stars held together by gravity.
About Galaxies
- Our home galaxy is called The Milky Way which contains around 400 billion stars.
- Galaxies are usually held together by a large Black Hole at the centre. The stars all orbit this central Black Hole.
- Scientists believe there are over 200 billion galaxies in the Universe.