1. There are more stars in the universe than grains of sand on all the beaches on Earth. That’s at least a billion trillion!
2. 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.
3. When venturing into space, astronauts wear spacesuits which have to be warmed, cooled, pressurised and supplied with fresh air. This takes six hours for them to put on!
4. The universe has no centre and is constantly expanding (getting bigger) every second – making it impossible to reach the edge.
5. 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!
6. The Earth is tiny in comparison with the rest of the universe – it could fit into the sun 1.3 million times.
7. The moon is the reason why we have tides and waves on Earth.
Post a Comment