A nearby 'super‑Earth' just 25 light years from our solar system has been recategorised as a lighter, likely rocky world ...

The nature of space, time and the evolution of life on Earth mean it’s unlikely extraterrestrial life has visited our home ...

Alien probes could already be hiding somewhere in our Solar System – and our current surveys are nowhere near good enough to rule them out, according to a NASA‑linked study presented this month by ...

Harvard astrophysicist Avi Loeb has floated the provocative idea that humans might themselves be alien‑made 'autonomous probes,' built through advanced synthetic biology rather than evolving entirely ...

Director Steven Spielberg claimed aliens have already visited planet Earth – and now scientists said he may be on the money, ...

There is no chance in hell our species will be able to reach another Earth-like planet in the Universe in the foreseeable future, so the only way we can get a sense of the habitability of such places ...

Astronomers studying the interstellar comet 3I/ATLAS say it could be a 12‑billion‑year‑old relic formed in near‑absolute‑zero conditions, while Nasa dismisses claims it is an alien probe.