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

Quasars are the most distant objects in the Universe.

Inbreeding causes 3 out of every 10 Dalmation dogs to suffer from hearing disability.

Christian Barnard performed the first heart transplant in 1967 - the patient lived for 18 days.

The Universe contains over 100 billion galaxies.

When Krakatoa erupted in 1883, its force was so great it could be heard 4,800 kilometres away in Australia.

Quasars emit more energy than 100 giant galaxies.

The saturn V rocket which carried man to the Moon develops power equivalent to fifty 747 jumbo jets.