Most alien-signal searches listen to a narrow part of the radio spectrum, but astronomers are now testing higher frequencies ...

Researchers are zeroing in on more deliberate “narrow-band” alien signals, well outside the radio frequencies SETI has ...

Astronomers might be hunting for alien signals in all the wrong places. A new ...

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 ...

Most SETI attempts have focused on a narrow stretch of the radio spectrum known as the “water hole." ...

Archived radio observations could open new frequencies to SETI while showing that past searches covered millions more stars ...

Astronomers searching for signs of extraterrestrial intelligence may have been missing alien signals in part of the radio spectrum that has not recently been explored.

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 ...

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 ...

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 ...

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 ...

Below is my ham radio. I have a permit for it, and you're allowed to use it. Adjust the bands and the dials to see if you can make contact with an alien! There are eight alien signals hidden within ...