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
A comet's tail always points away from the sun.
2
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
MDIF, a New York based non-profit organisation, is planning to beam free Wi-Fi to the entire world from space.
18
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82
Scientists have confirmed that Enceladus, one of Saturn’s moons, has a watery ocean.
6
If NASA sent birds into space they would soon die; they need gravity to swallow.
146