Summer on Uranus lasts for 21 years.
358
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
If NASA sent birds into space they would soon die; they need gravity to swallow.
146
An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Jupiter is bigger than all the other planets combined.
254
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