The universe is at it again; scientists have been baffled by a discovery that turns all the knowledge they have on planetary ...

Comet or asteroid heading for the Sun is only the third time an interstellar object has been spotted inside our group of planets Sarah Knapton is the Science Editor of The Telegraph and has covered ...

'Extraterrestrial' fragments recovered from the Pacific Ocean floor could have come from an alien planet outside our solar system, an astronomer has claimed. Planetary scientist Humberto Campins said ...

Scientists have now discovered that alien stone contains exotic micro-mineral compounds, not found anywhere on Earth or on any meteorites or comets Dr Mario di Martino/INAF Osservatorio Astrofysico di ...

'Oumuamua was the first known interstellar object to visit our solar system – but not the last. (Getty) The cigar-shaped space rock `Oumuamua was the first known interstellar object to visit our solar ...

Add Yahoo as a preferred source to see more of our stories on Google. What is the strange cigar-shaped object (Picture ESA) A visitor to our solar system became the subject of headlines around the ...

A planet that suffers scorching 475°C (900°F) temperatures beneath a thick acidic atmosphere may be the last place you'd expect alien life in our Solar System. But one NASA scientist claims that ...