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

As an astronomer, I collect stars. There are several hundred billion of them in our Galaxy, the Milky Way, so it’s important to find a way to categorise them. While others might rank their stars by co

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

How many planets are there in the Solar System? It sounds like an easy question, but it’s more complex than you might think – and actually it’s one we still can’t answer. With scientists finding evide

Using Webb, researchers detected several complex carbon-based molecules ...

For the first time, a study has revealed Earth-sized planets orbiting each of the stars in a binary system. An international team found the worlds around a stellar pair called TOI-2267: two small, coo