An organisation called Mars One is planning to establish a permanent colony of humans on Mars by 2023.
9
A car traveling 100 mph would take more than 29 million years to reach the nearest star (to our solar system)
88
The Earth weighs around 6,600,000,000,000,000,000,000 tons (5,940 billion billion metric tons)!
221
The light hitting the earth right now is 30 thousand years old.
163
Venus is the only planet that rotates clockwise.
310
Summer on Uranus lasts for 21 years.
358
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