Novak Djokovic's straight sets win over Alejandro Tabilo in the second round at the Hellenic Championship in Athens seemed like another routine day - until a tribute flashed up on the screen ...

A new image of comet 3I/ATLAS has revealed that the interstellar visitor is glowing green and hiding its tail, but that doesn't mean there's anything wrong with it. Qicheng Zhang, a researcher at the ...