Only 55% of Americans know that the sun is a star.
986
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
A comet's tail always points away from the sun.
2
41% of the moon is not visible from earth at any time.
103
Astronauts cannot burp in space.
232
There are two golf balls sitting on the moon.
721
Jupiter's magnetosphere is the largest single structure inside the Solar System. If you could see it with your eyes, it would appear larger than our full Moon.
8