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 ...

A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer. The enormous interstellar object, now officially dubbed 3I/ATLAS, is already ...

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 ...

Earlier this week, astronomers were left baffled after systems spotted a mysterious alien object hurtling through our Solar System at 60 kilometres per second. NASA has since confirmed the object is ...

European scientists have revealed that the interstellar comet 3I/ATLAS was captured in unprecedented detail by the European Space Agency's JUICE spacecraft on 6 November 2025, when the mission was en ...

A small asteroid or comet is believed to be the first confirmed "interstellar object" to have entered our solar system from somewhere else in the galaxy. Moving between stars and occasionally passing ...

Artwork: Six worlds around a star like our Sun are ideal to study how planets formed and whether they are home to life Researchers have located "the perfect solar system", forged without the violent ...

Nasa dismisses theory by Harvard astronomer who suggested an object from beyond the solar system could be a relic from a distant civilization Skywatchers at Nasa have discounted a Harvard astronomer’s ...