On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
More than 20 million meteoroids enter Earth's atmosphere every day.
139
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
It would take more than 150 years to drive a car to the sun.
569
If two pieces of metal touch in space, they become permanently stuck together.
808
There are approximately 3,500 astronomers in the U.S. - but over 15,000 astrologers.
124