Astronomers are now regularly detecting planets thousands of light years from Earth – but have we missed one in our own Solar System?

Amazing answers to your curious questions

An artist’s impression of Cha 1107-7626 accreting material ...

You may have bought this December issue of BBC Sky at Night Magazine because you’ve been given – or you’ve treated yourself to – a new telescope for Christmas. And you may be wondering what to do with

The comet dubbed 3I/ATLAS, a rare extrasolar intruder, continues to barrel through the Solar System, attracting interest and speculation from astronomers and space scientists worldwide. Harvard astron

Although it’s by no means certain, scientists are slowly accumulating evidence that life once existed on the Red Planet