Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...
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Is the first alien signal a civilization’s last message?
The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...
Humanity experiences unprecedented peace and happiness in Apple TV+’s ‘Pluribus,’ after an alien virus arrives in the form of ...
SETI's 1977 "Wow!" signal from deep space was even stronger than originally thought, but its source remains a complete ...
Scientists suggest the first alien signal we detect could be a desperate cry for help from a fading civilization.
SETI Institute Tracks ‘Twinkling’ Pulsar Signals to Sharpen Cosmic Clocks and Hunt for Alien Signals
SETI scientists observing a pulsar’s radio pulses over time are redefining how astronomers time pulsars and search for ...
Scientists searched 27 exoplanets for alien technology using planetary eclipses, revealing a new way SETI hunts signals ...
On Dec. 19, 2025, 3I/ATLAS flew by Earth and did more than just give astronomers something to look at; it brought a piece of ...
Historically, many scientists and society have been fascinated by the prospect of making contact with extraterrestrial ...
On August 15, 1977, the Big Ear Radio Telescope in Delaware, Ohio, received the most powerful signal it would ever detect during its decades of observations. The signal lasted just 72 seconds, but ...
Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.
Astronomers have been scanning the skies for alien radio signals for decades, but so far they’ve heard nary a peep (with one possible exception). But according to a recent study, that could be because ...
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