A comet's tail always points away from the sun.
2
The Earth gets heavier each day by tons, as meteoric dust settles on it.
118
The volume of the Earth's moon is the same as the volume of the Pacific Ocean.
178
Sound doesn't travel in space.
255
Astronauts cannot burp in space.
232
The light hitting the earth right now is 30 thousand years old.
163
Only 55% of Americans know that the sun is a star.
986
A 100-pound person on Earth would weigh 38 pounds on Mars.
102