An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Buzz Aldrin’s mother’s maiden name was Moon.
9
The heart of an astronaut actually gets smaller when in outer space.
216
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
Sound doesn't travel in space.
255
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
If you went out into space, you would explode before you suffocated because there's no air pressure.
149