fact about universe
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universe never can die
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- The universe began with the Big Bang, and is estimated to be approximately 13.7 billion years old (plus or minus 130 million years).
- The universe is overwhelmingly made up of things that cannot be seen. In fact, the stars, planets and galaxies that can be detected make up only 4 percent of the universe, according to astronomers. The other 96 percent is made up of substances that cannot be seen or easily comprehended.
- There is a supermassive black hole at the heart of every galaxy.
- There are more stars in the universe than grains of sand on all the beaches on Earth. That’s at least a billion trillion.
- The universe has no centre and is constantly expanding (getting bigger) every second – making it impossible to reach the edge.
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