Micro-organisms have been brought back to life after being frozen in perma-frost for three million years.

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

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

A healthy person has 6,000 million, million, million haemoglobin molecules.

The tallest tree ever was an Australian eucalyptus - In 1872 it was measured at 435 feet tall.

If our Sun were just inch in diameter, the nearest star would be 445 miles away.

The longest glacier in Antarctica, the Almbert glacier, is 250 miles long and 40 miles wide.

Giraffes often sleep for only 20 minutes in any 24 hours. They may sleep up to 2 hours (in spurts - not all at once), but this is rare. They never lie down.