Astronomers have detected the first-ever "radio signal" coming from the interstellar comet 3I/ATLAS, right as it passed the halfway mark on its oneway trip through the solar system. And while this may ...

Astronomers may have been listening for alien civilizations in only a small slice of the radio spectrum while overlooking a largely unexplored range of higher frequencies. Using archived data from the ...

Most alien-signal searches listen to a narrow part of the radio spectrum, but astronomers are now testing higher frequencies that have barely been explored. A first search using archived ALMA ...

The third confirmed visitor from outside our solar system, Interstellar comet 3I/ATLAS, has been turning heads with its peculiar, elongated shape and unpredictable behavior as it speeds towards the ...

Yet the key insight lies not in what was found, but in what the analysis revealed about the scale of previous searches.

Most radio SETI (Search for Extraterrestrial Intelligence) projects concentrate on frequencies from 1.42 to 1.66 GHz.

Researchers found radio telescopes have unknowingly surveyed millions of additional stars, revealing the search for alien ...