Space telescope aims to confirm major finding on distant planet K2-18b World is more than eight times the mass of Earth and 120 light-years away Astronomers could finally show that alien life does ...

For a few evenings around 28 February, every planet in the solar system will be visible in the night sky, thanks to a rare great planetary alignment. Here's how to make sure you don't miss this ...

Europe's Euclid space telescope, which is on a mission to shed light on the mysteries of dark matter and dark energy, has ...

Get the facts on this planet of extremes. Orbiting the Sun at a distance of 4.5 billion kilometres - more than 30 times further out than the Earth - Neptune is a dark, icy world. Receiving just one ...