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 you went out into space, you would explode before you suffocated because there's no air pressure.
149
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
A comet's tail always points away from the sun.
2
More than 20 million meteoroids enter Earth's atmosphere every day.
139
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Approximately 115 tons of ocean salt spray enters the earth's atmosphere each second.
100