When a flea jumps, the rate of acceleration is 20 times that of the space shuttle during launch.

The deepest part of any ocean in the world is the Mariana trench in the Pacific with a depth of 35,797 feet.

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

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

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

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

The world's smallest winged insect, the Tanzanian parasitic wasp, is smaller than the eye of a housefly.

The Australian billygoat plum contains 100 times more vitamin C than an orange.