We measure the extremely long distances between things in space by light years. A light year is the distance that light travels in one Earth year. Light travels at about 300,000 kilometres per second.

First 1,000 schools in England take students outside to participate in global biodiversity research We use cookies to give you the best online experience. We use them to improve our website and ...

While animals existed before the Cambrian Explosion, in a period known as the Ediacaran, they’ve been hard to study as they rarely fossilise. Generally, the only reminders of these animals are trace ...

These bone-eating communities are ancient, and have been on Earth for at least 100 million years. Before whales existed, bone-eating worms were eating into the skeletons of mosasaurs, ichthyosaurs and ...