If advanced aliens lived on a planet within a few hundred to a thousand light years away from Earth, then vast numbers of their signals must already have crossed Earth without being noticed, a new ...

These findings suggest that the absence of past detections does not mean discovery is imminent. If extraterrestrial technologies exist and have already sent signals that reached Earth, they are likely ...

For 66 years, we've been listening for alien signals. In that time, we found exactly nothing. But three studies just dropped ...

For decades, scientists have been actively searching for signs of extraterrestrial life. Fromradio waves to laser flashes and infrared heat signatures, the hunt for alien technosignatures has ...

Add Yahoo as a preferred source to see more of our stories on Google. Turbulent star environments may broaden alien radio signals, making them harder for SETI to detect. (CREDIT: Shutterstock) Radio ...

A lunar far side experiment finds no alien signals but proves the Moon could offer the quietest listening post yet for future ...

Scientists are advancing a new way to search for life beyond Earth by looking not for a single decisive signal on one planet, but for recurring patterns across many worlds. The idea, set out in a ...

Solar winds and coronal mass ejections may scatter narrow signals, making them harder for Earth-based telescopes to detect. The SETI Institute uses radio telescopes to search for signs of intelligent ...

Radio silence has long puzzled those searching for extraterrestrial intelligence, but the answer might lie much closer to the source of potential signals than previously thought. Conditions around ...