Two objects have struck the earth with enough force to destroy a whole city. Each object, one in 1908 and again in 1947, struck regions of Siberia. Not one human being was hurt either time.

In Gulliver's Travels Jonathan Swift described the two moons of Mars, Phobos and Deimos, giving their exact size and speeds of rotation. He did this more than 100 years before either moon was discovered.

People who chase after rare birds are called twitchers.

AMAZING FACTS