The typical spec of dust that you see floating in the air is half way in size between the Earth and a subatomic particle.
131
A comet's tail always points away from the sun.
2
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Only 55% of Americans know that the sun is a star.
986
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124
It would take more than 150 years to drive a car to the sun.
569
Astronauts get taller when they are in space.
224