Once small enough, these technograins might gain a trip out of its host solar system by a solar wind that overcomes the ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new ...

Scientists recently detected something unusual entering our Solar System, sparking discussions about whether it is a comet or ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other ...

Valley’s role | Compete respectfully | Stunted potential. Mercury News reader letters to the editor for June 17, 2026.

Every second, hypervelocity collisions may be blasting tiny flecks of Earth into space. Some of those grains, small enough to ...

A new SETI study suggests we may be overlooking alien signals not because they aren't there, but because their own stars are scrambling them before they escape into space. Turbulent plasma and ...

To date, over 5000 exoplanets have been discovered using telescopes on the ground and in space. Credit: NASA/JPL-Caltech ...

Using the Keck Observatory, astronomers measured the spins of dozens of giant planets and brown dwarfs orbiting distant stars ...

Astronomers studying the atmospheres of several intensely heated exoplanets uncovered an unexpected pattern that may reveal a ...

The United States government's recent release of hundreds of previously classified unidentified anomalous phenomena (UAPs) ...

We're disclosing what Steven Spielberg, Demi Lovato, Tom Cruise and more celebrities have said about the possibility that the ...