The stellar companion may help explain why the brightness of Betelgeuse, the red supergiant, is open to so much variation.

Scientists have issued a concerning update on a mystery interstellar object travelling through our solar system.

Earlier this year, astronomers reported possible evidence of life on another planet – but new observations from JWST suggest the apparent biosignature isn’t there after all ...

Earth plunged into one of the most extreme climate events in its history. In several stages, the planet became a giant ...