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16 things you need to Know in the world.

1. A single day on Venus is longer than an entire year on Earth.

2. If you ever stepped on the moon, your footprints would remain there forever.

3. Only half a billionth of the energy released by the sun reaches Earth.

4. The skin on your feet peels off in space. 

5. One million Earths can fit inside the sun.

6. You become taller in space.

7. Space isn't that far away. In theory, if you could drive your car upwards, you could be there in less than an hour.

8. You can cry in space but your tears don’t fall.

9. You can't walk on Jupiter, Saturn, Uranus or Neptune because they have no solid surface.

10. Olympus moon, which is 3 times higher than the Mount Everest, is the highest mountain known to man and is located on Mars.

11. If you could fly to Pluto, the trip would take more than 800 years.

12. The astronauts were placed in quarantine after returning from the moon.

13. In a vacuum like space, when two pieces of metal touch each other they bond together. This is a process called cold welding. On the Earth because of the oxygen in our environment this does not happen naturally but it is used during some manufacturing processes.

14. Neutron stars are so dense that a teaspoon of them would be equal to the weight of the entire Earth’s population.

15. The star Lucy in the constellation Centaurus is a huge cosmic diamond of 10 billion trillion trillion carats.

16. Helium is the only substance in the universe that cannot be in solid form.It can’t be cold enough.

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