When comet 3I/ATLAS was discovered in July 2025, on a one-way interstellar journey through our Solar System, Harvard astronomer Avi Loeb suggested it might be an alien spacecraft paying us a visit.

Microscopic bits of alien tech on the moon? As scientists searched for intelligent extraterrestrial life — i.e., aliens — they’ve focused on a short list of standard possibilities. In other words, ...

Artificial intelligence may have a far stranger origin than Silicon Valley's technological revolution suggests, according to quantum computing entrepreneur Deep Prasad, who has raised the possibility ...

If an alien were to look at Earth, many human technologies – from cell towers to fluorescent light bulbs – could be a beacon signifying the presence of life. These first, foundational attempts to ...

The search for extraterrestrial intelligence has traditionally focused on detecting radio signals or laser transmissions from distant civilisations. But a new study proposes a very different idea: ...

Fresh allegations that US intelligence agencies may be secretly holding recovered alien technology have revived one of Washington's most persistent debates, after a prominent UFO whistleblower claimed ...