follow 1. You could never get to the edge of the universe, if you travel outward in a straight line , you would come back to the point where you began.
2. A spoonful of a neutron star weighs about a billion ton.
3. A year on Venus is shorter than its day
4. It takes 225 million years for our Sun to travel round the galaxy
5 .There’s a planet-sized diamond in Centaurus named after a Beatles song
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