Sound doesn't travel in space.
255
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The Space Shuttle main engine weighs 1/7th as much as a train engine but delivers as much horsepower as 39 locomotives.
147
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
Earth is the only planet in our solar system that's not named after a god or goddess.
17
The center of the galaxy tastes like raspberries and smells like rum, according to astronomers.
4