Astronauts cannot burp in space.
232
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
Venus is the only planet that rotates clockwise.
310
If you went out into space, you would explode before you suffocated because there's no air pressure.
149
The population of the Earth has more than doubled since 1950.
151
One pinhead of the sun's energy is enough to kill a person at a distance of 160 kilometers.
277
Any space vehicle must move at a rate of 7 miles per second in order to escape the earth's gravitational pull.
121