Check out some amazing FACTS.
- A black hole is created when big stars explode. Its gravitational force is so strong that nothing can escape from it – luckily the closest black hole is about 10,000 light-years from Earth.
- The universe has no centre and is constantly expanding (getting bigger) every second – making it impossible to reach the edge.
- The Earth is about 4.5 billion years old – but that’s only a third of the age of the universe – which is 13.5 billion years old!
- There are more stars in the universe than grains of sand on all the beaches on Earth. That’s at least a billion trillion!
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