The heart of an astronaut actually gets smaller when in outer space.
216
A 100-pound person on Earth would weigh 38 pounds on Mars.
102
Lightning strikes about 6,000 times per minute on this planet!
158
There are two golf balls sitting on the moon.
721
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
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
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
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