Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

While imperceptible to humans, these tiny delays are significant for experiments that rely on pulsars as ultra-precise cosmic ...

In September, NASA announced the discovery of a possible sign of life, known as a potential biosignature, on Mars. The Perseverance rover, which has been exploring a dried-up lakebed for years, found ...

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a technosignature. Reading time 3 minutes From the moment astronomers discovered ...

The search for life beyond our solar system heated up this year when scientists reported a tantalising signal from an exoplanet of a molecule that is known to be produced exclusively by life on Earth.

During the Atomic Age, launched in 1945, the detonation of the atomic bomb ushered in Cold War politics, nuclear energy and Godzilla. That's also when objects began appearing seemingly en masse in the ...

Chinese scientists' claims that their "Sky Eye" telescope could have picked up signals from intelligent aliens have been met with skepticism by an American colleague. Donald Trump issues funding ...

Americans are becoming more open to the idea that aliens have visited Earth, according to a series of polls that show belief in alien visitation has been steadily on the rise since 2012. Moreover, ...

The NASA/ESA Hubble Space Telescope reobserved interstellar comet 3I/ATLAS on 30 November with its Wide Field Camera 3 instrument. At the time, the comet was about 286 million kilometers from Earth.

For decades, science fiction writers have tried their best to prepare us for eventual contact with aliens. Their efforts are dominated by several recurrent tropes. There's the invasion by a warlike ...

Something very significant has been happening in plain sight, and almost no one seems to be noticing. Over the past few years, there have been televised congressional hearings, repeated news segments ...

If aliens are out there, why haven’t we heard from them? That’s the question at the center of Pop Mech’s new story, “Aliens Probably Exist—But They’re Staying Silent For a Reason, NASA Scientist ...