The heart of an astronaut actually gets smaller when in outer space.
216
It would take more than 150 years to drive a car to the sun.
569
The last time that the Sun was in its current position in space around the Milky Way, dinosaurs ruled the Earth.
10
Summer on Uranus lasts for 21 years.
358
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
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
41% of the moon is not visible from earth at any time.
103