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

The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

One estimate by an engineer in SCU forecasts that given 300 "actual" UAP sightings per year — and assuming random distribution of sightings — that with 930 automated camera systems distributed across ...

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

Image number 100,000, which was captured on Oct. 7, "shows mesas and dunes within Syrtis Major, a region about 50 miles (80 kilometers) southeast of Jezero Crater, which NASA's Perseverance rover is ...

New laboratory studies could shed light on a rock containing potential signs of alien life that’s stranded on Mars ...

Since the 1950s, humanity has been searching for extraterrestrial life with increasingly sophisticated tools. But after decades of space probes, meteorite analysis, radio telescopes, and UFO ...

In an unprecedented step, the Department of Defense announced online on Nov. 24, 2025, that it was reviewing statements by U.S. Sen. Mark Kelly, a Democrat, who is a retired Navy captain, decorated ...

After the prolonged shutdown of the US government, NASA has finally started its nonessential work back up. It's starting off with a bang: The agency called a press conference to show its hitherto ...

For over a century, humans have been listening to the cosmos, hoping to detect signs of extraterrestrial life. From Tesla’s early experiments to the famous “WOW!” signal, the search has raised more ...

These so-called von Neumann probes, named after the mathematician who conceptualized them, could potentially explain the absence of direct contact with alien civilizations—if we know where, and how, ...