If the Sun were the size of a beach ball then Jupiter would be the size of a golf ball and the Earth would be as small as a pea.

The first synthetic human chromosome was constructed by US scientists in 1997.

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

Light would take 0.13 seconds to travel around the Earth.

It takes 8 minutes 17 seconds for light to travel from the Sun's surface to the Earth.

The Earth is 4.56 billion years old…the same age as the Moon and the Sun.

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

On the day that Alexander Graham Bell was buried the entire US telephone system was shut down for 1 minute in tribute.