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

When a hunk of ice from another star system hurtles through our cosmic neighborhood, astronomers pay attention. When that ...

'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 ...

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 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. Saturn’s icy moon Enceladus ‘has all the ingredients for alien life,’ scientists say Radio telescopes have monitored thousands of ...

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 ...

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 - ...