Comet 3I/ATLAS is drawing unusual attention because it doesn't behave the way most comets do in photographs and time-series ...

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

Is 3I/ATLAS an alien probe? Breakthrough Listen uses the Green Bank Telescope to search for technosignatures as the ...

As the interstellar comet 3I/ATLAS sweeps through the inner solar system, it has become a magnet for both scientific ...

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

That book is none other than Ursula K. Le Guin's classic novel The Left Hand of Darkness, which is Carol Sturka's (Rhea ...

From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...

It's one of life's biggest questions - are we alone in the universe? Now, one of Britain's top space scientists has declared ...

The mysterious space rock suggested to be a hostile alien spaceship was due to make its closest approach to Earth today (Dec ...

Long before scientists discovered that other stars in the universe host their own planetary systems, humanity had ...

The faraway moon has 'a slushy high-pressure ice layer' similar to the melting Arctic that could hide extraterrestrial life.

NASA has pinpointed the exact moment when interstellar comet 3I/ATLAS, the object suspected to be an alien spacecraft, made ...