Did you know that the Sun isn't really on fire? No. Our Sun isn't a raging bonfire in the center of the Solar System. It's actually a nuclear reactor. Inside stars, hydrogen atoms fuse together to form helium atoms.

00:00 The Sun is a giant ball of fire
00:39 Meteors are flaming rocks
02:03 Nuking an asteroid is a good idea
02:51 You can't cry in space
03:24 Zero gravity means zero mass
03:56 There is no sound in space
04:27 Planets make music
05:08 All space is a vacuum
05:47 Astronauts explode in space
06:15 Astronauts can move by blowing air
06:48 The Moon has a dark side
07:19 Earth is a perfect sphere

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