Microbial life can survive on the cooling rods of a nuclear reactor.

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

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

Alfred Nobel invented dynamite in 1866.

The largest meteorite craters in the world are in Sudbury, Ontario, canada and in Vredefort, South Africa.

In 5 billion years the Sun will run out of fuel and turn into a Red Giant.

Human tapeworms can grow up to 22.9m.

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