'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 ...

The glowing atmosphere of a strangely giant alien world could help solve mysteries of not just how it formed, but how our own solar system arose, scientists say. The exoplanet discovery comes from the ...

Aliens have not journeyed to our corner of the galaxy in an interstellar spacecraft, astronomers said in a new study of the space rock Oumuamua. Oumuamua is the first known object to pass through ...

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 ...

Scientists are looking for evidence of alien technology in a faraway solar system with the most perfect mathematical alignment and synchrony of planets ever seen. The solar system, about 100 light ...

A new UK-built spacecraft hopes to unravel the secrets of the mysterious planet when it blasts off later this month MERCURY, the tiny planet closest to the sun, has long remained a mystery. But it’s ...

'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 ...

One of them is about 4.2 light years away - more than a whopping 24 trillion miles from Earth! Find out more here.

Asteroid experts at São Paulo State University's Institute of Geosciences and Exact Sciences have identified 19 space rocks of interstellar origin. The space rocks are classed as Centaurs - ...