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

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

Historically, many scientists and society have been fascinated by the prospect of making contact with extraterrestrial ...

Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.

Could the first confirmed signal from an extraterrestrial source be less a hello than a goodbye? Astrophysicist David Kipping ...

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

The search for extraterrestrial intelligence (SETI) has yet to detect alien technosignatures like radio waves, but the cosmos is vast, and there are plenty of places left to look. New research ...

Scientists across the globe were stumped by mysterious signals being received at the Parkes radio telescope, but it turned out to be anything but extraterrestrial. Scientists across the globe were ...

SETI scientists observing a pulsar’s radio pulses over time are redefining how astronomers time pulsars and search for ...

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 Claims .” According to astrophysicist Robin Corbet, it’s not ...

Mysterious red lights falling from space, initially thought to be alien signals, have been identified by scientists as red sprites. These rare upper-atmosphere lightning phenomena occur high above ...