More than 20 million meteoroids enter Earth's atmosphere every day.
139
Astronauts cannot burp in space.
232
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
In space, astronauts cannot cry properly, because there is no gravity, so the tears can't flow down their faces!
175
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The sun puts out more power in 1 second than mankind has ever used within human existence.
14
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14