Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
The light hitting the earth right now is 30 thousand years old.
163
If Earth's history was condensed into twenty-four hours, life would've appeared at around 4am, land plants at 10:24pm, dinosaur extinction at 11:41pm, and human history would’ve began at 11:58:43pm.
21
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The North Atlantic gets 2.5 centimetres (1in) wider every year.
119
There are approximately three chickens for every human on Earth.
13
The United States has paved enough roads to circle the Earth over 150 times.
72
More than a dozen men have stood on the surface of the moon, but only three have been to Challenger Deep in the Marianas Trench, the deepest known spot in the ocean.
17