A 100-pound person on Earth would weigh 38 pounds on Mars.
102
It would take more than 150 years to drive a car to the sun.
569
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
Astronauts cannot burp in space.
232
A comet's tail always points away from the sun.
2
On Titan, Saturn's largest moon, the atmosphere is so thick and the gravity so low that humans could fly through it by flapping "wings" attached to their arms.
7
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46