Saturn’s largest moon has long looked like a frozen time capsule of early Earth, but a new set of measurements has upended ...

The most startling revelation regarding 3I/ATLAS concerns its age. Associate Professor Michele Bannister of the University of ...

The unusual behaviour of interstellar comet 3I/ATLAS has reignited online debate, but astronomers say the gaps in public ...

About 470,000 “interesting” radio hits can still add up to zero. That was the practical outcome when astronomers aimed one of ...

Scientists used the 100-metre Green Bank Telescope to look for alien signals but detected no radio signals from 3I/ATLAS.

While many sci-fi hits have spawned extended franchises, these standalone works prove that science fiction movies can leave ...

If nonliving materials can produce rich, organized mixtures of organic molecules, then the traditional signs we use to ...

If you spotted a bright white light trail in the western Colorado sky on Friday, Jan. 2, we regret to inform it wasn’t aliens ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Three symmetrical jets jutting out of interstellar object 3I/ATLAS are showing up in Hubble observations, puzzling astronomer ...

A strange world just 47 light-years from Earth is rewriting what scientists thought they knew about alien planets. Hidden ...

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