1
Only 55% of Americans know that the sun is a star.
986
2
If two pieces of metal touch in space, they become permanently stuck together.
807
3
There are two golf balls sitting on the moon.
721
4
The Earth gets 100 tons heavier every day due to falling space dust.
673
5
It would take more than 150 years to drive a car to the sun.
569
6
Summer on Uranus lasts for 21 years.
358
7
Venus is the only planet that rotates clockwise.
310
8
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
9
Sound doesn't travel in space.
255
10
Jupiter is bigger than all the other planets combined.
254
11
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
12
Astronauts cannot burp in space.
232
13
Astronauts get taller when they are in space.
224
14
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
15
The density of Saturn is so low that if you were to put it in a giant glass of water it would float.
219
16
The heart of an astronaut actually gets smaller when in outer space.
216
17
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
18
The sun is 330,330 times larger than the earth!
190
19
The earth travels through space at 660,000 miles per hour.
189
20
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178