Mars has never looked more like a planet built for hiding secrets. A cluster of eight vast, water-carved caves appears almost engineered to shield fragile chemistry, or even biology, from the brutal ...

It's almost certainly not an extraterrestrial telegram. But waves that seemed to come from the vicinity of Proxima Centauri ...

From blind mystic Baba Vanga to French astrologer Nostradamus and even modern-day seers, predictions for 2026 are once again ...

I/ATLAS was first discovered on July 1, 2025, it has garnered much attention, including speculation, hopes and fears that it ...

With 3I/ATLAS streaking away from our planet, speculation remains as to whether the interstellar comet is alien or not.

From science-fiction technologies like warp drives and levitation to the search for evidence of intelligent life elsewhere in ...

With the countdown to Baba Vanga’s 2025 alien prediction, astronomer David Kipping proposes a controversial theory about the ...

But 3I/ATLAS is no ordinary rock – it’s a comet from beyond the solar system which greeted the Earth on December 19. It’s ...

Amid all of io9’s lists looking back at the year’s best books, movies, TV shows, and more, there’s always one melancholy ...

Astronomers probed interstellar comet 3I/ATLAS for alien technosignatures, tracing nine 'mysterious' signals back to human ...

These TV shows all grapple with this question in one way or another (except Andor, which is about the powerless rising up ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.