An individual blood cell takes about 60 seconds to make a complete circuit of the body.

10 percent of all human beings ever born are alive at this very moment.

Astronauts cannot belch - there is no gravity to separate liquid from gas in their stomachs.

The grey whale migrates 12,500 miles from the Artic to Mexico and back every year.

The wingspan of a Boeing 747 is longer than the Wright brother's first flight.

DNA was first discovered in 1869 by Swiss Friedrich Mieschler.

The risk of being struck by a falling meteorite for a human is one occurence every 9,300 years.

In 5 billion years the Sun will run out of fuel and turn into a Red Giant.