Astronauts cannot burp in space.
232
The moon is actually moving away from Earth at a rate of 1.5 inches per year.
236
A comet's tail always points away from the sun.
2
There are 5 to 10 times more stars in the known Universe than there are grains of sand on all the world's beaches, but a single grain of sand has more atoms than there are stars in the known Universe.
20
In the last 7 years, humanity has discovered 43 potentially habitable planets.
14
The Earth gets 100 tons heavier every day due to falling space dust.
673
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The light hitting the earth right now is 30 thousand years old.
163