woah nelly...

interesting and mind-boggling facts...

If our Sun were just 2.54 centimetres in diameter, the nearest star would be 716.15 kilometres away.

The speed of light is 299,792,458 metres per second. It takes eight minutes 17 seconds for light to travel from the Sun's surface to the Earth.

The dinosaurs became extinct before the Rocky Mountains or the Alps were formed.

The air at the summit of Mount Everest is only a third as thick as the air at sea level.

Without its lining of mucus your stomach would digest itself.

The thermometer was invented in 1607 by Galileo Galilei.

There are about 96,560 kilometres of blood vessels in the human body.

The call of the Humpback Whale is louder than 100 decibels (dB) and can be heard from almost 805 kilometers away.

The largest galaxies contain a million, million stars; the Universe contains over 100 billion galaxies.

There are more living organisms on the skin of each human than there are humans on the surface of the Earth.

Human males produce one thousand sperm cells each second or 86 million each day.

Somewhere in the flicker of a badly tuned cathode ray tube (CRT) television set is the background radiation from the Big Bang.

At over 2000 kilometres long The Great Barrier Reef is the largest living structure on Earth.

About two cubic centimetres of a neutron star has a mass of over 100 million tonnes.

The deepest part of any ocean in the world is the Marianas Trench in the Pacific with a depth of 10,911 metres.