October 12th, 1999 was declared 'The Day of Six Billion' based on United Nations projections.

Males produce one thousand sperm cells each second - 86 million each day.

Somewhere in the flicker of a badly tuned TV set is the background radiation from the Big Bang.

Quasars are the most distant objects in the Universe.

The driest inhabited place in the world is Aswan, Egypt where the annual average rainfall is .02 inches.

An electric eel can produce a shock of up to 650 volts.

A thimbleful of a neutron star would weigh over 100 million tons.

The speed of light is generally rounded down to 186,000 miles per second. In exact terms it is 299,792,458 m/s (metres per second – that is equal to 186,287.49 miles per second).