If you thought a long-haul flight to Australia was bad enough, try being on a plane for 139million years. This is how long it would take a jet travelling at 600mph to get to K2-18b, a planet that ...

K2-18b is a massive rock that orbits a dim star 124 light-years from Earth. Analysis of the exoplanet – a planet outside our solar system – shows that its atmosphere may contain a molecule ...

How Did Life Start on Earth? Life arose on Earth somewhere between 3.5 billion years and 3.8 billion years ago, yet the circumstances that allowed this to happen have been subject to constant ...