Quasars emit more energy than 100 giant galaxies.

The air at the summit of Mount Everest, 29,029 feet is only a third as thick as the air at sea level.

If every star in the Milky Way was a grain of salt they would fill an Olympic sized swimming pool.

One million, million, million, million, millionth of a second after the Big Bang the Universe was the size of a …pea.

Every hour the Universe expands by a billion miles in all directions.

A dog's sense of smell is 1,000 times more sensitive than a humans.

A salmon-rich, low cholesterol diet means that Inuits rarely suffer from heart disease.

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