A comet's tail always points away from the sun.
2
According to a study by the National Science Foundation, only half of Americans believe in evolution, and one in 4 don't know that the Earth orbits the Sun.
14
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
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
Tidal forces between the Earth and Moon are slowing the Earth down and pushing the Moon further away.
46
Summer on Uranus lasts for 21 years.
358