Mars had an oxygen-rich atmosphere around 4 billion years ago
13
A lightning bolt generates temperatures five times hotter than those found at the sun's surface!
127
It would take more than 150 years to drive a car to the sun.
569
The sun is 330,330 times larger than the earth!
190
All of the Earth's continents are wider at the north than in the south - and nobody knows why.
194
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Buzz Aldrin’s mother’s maiden name was Moon.
9