Because the Earth’s plates are constantly moving, Hawaii is gradually drifting toward Alaska, and the Himalayas are growing as India is pushed deeper into mainland Asia.

It takes eight minutes for light from the sun to reach Earth. 

73% of all the mass of the visible universe is in the form of hydrogen, which was the very first element created after the Big Bang.

Theoretically, time travel is possible, but we would only be able to travel forward in time.

When you add salt to water, the volume of the water decreases slightly.

Diamond is the hardest material on the planet, yet like the graphite center of a pencil, it is made of nothing more than pure carbon.