Astronomers explore the hypothetical world of exomoon expulsion

Moons ejected from orbits around gas giant exoplanets could explain several astronomical mysteries, an international team of astronomers suggests

Alien megastructure confirmed as unlikely cause of star’s weird behaviour

A team of more than 200 researchers is one step closer to solving the mystery behind Tabby’s Star

Tabby’s Star has baffled astronomers for years, as it shows completely unexpected light variation

Find out what’s beyond the edge of the universe in the latest issue of All About Space, available from all good supermarkets and newsagents