An international team of astronomers has spotted the farthest known gravitational lens and, as Albert Einstein predicted, it is a galaxy that deflects and intensifies the light of a much further object.
9
The light hitting the earth right now is 30 thousand years old.
163
Sound travels about 4 times faster in water than in air.
408
There are more atoms in one teaspoon of water than there are teaspoons of water in the Atlantic Ocean.
13
Pumice is the only rock that floats on water.
14
Future biotechnology could be used to trick a prisoner's mind into thinking they have served a 1,000 year sentence in only eight hours, a group of scientists have claimed.
0
Real diamonds do not show up on x-ray.
36