Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...

In late November 2025, astronomers captured an unprecedented cosmic signature: the first X-ray emissions ever detected from ...

I/ATLAS shows baffling energy and composition that defy cometary physics, sparking scientific scrutiny and debate over its ...

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

NASA’s SPHEREx space telescope has mapped the entire sky in 102 infrared colors for the first time, revealing cosmic secrets ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

The search for intelligent life in our galaxy is shifting from abstract speculation to detailed cartography, as researchers try to sketch where alien societies might arise, thrive and vanish inside ...

Nearly two-thirds of Americans believe intelligent life exists beyond Earth, according to a 2021 study from the Pew Research Center. Meanwhile, some Americans believe that there is proof of UFOs and ...

An incredible new image shows the multi-tailed alien comet 3I/ATLAS shooting past a distant galaxy in the night sky. The stunning scene is a reminder of the object's perfectly natural interstellar ...