According to the Gaia hypothesis, life created Earth—or at least the Earth we know today. This theory, first formulated by chemist James Lovelock in the 1970s, was a hit with the media and the public ...

Walking and driving around through our everyday lives, we tend to think of life on Earth as a static proposal. Rarely do people look up and think of the big universe that exists around us. We do live ...

You’ve no doubt seen this kind of news headline: “Astronomers Say Space Rock May Hit Earth in the Not-Too-Distant Future!” We usually get such warnings about one or two objects every year; the latest ...

A meteor is a broken fragment of rock from space, such as debris from an asteroid collision, that enters Earth's atmosphere. They are typically visible at night as they make fast-moving streaks ...