This mysterious radio signal has puzzled astronomers for nearly 50 years

The “Wow!” signal is one of our best pieces of evidence for aliens, but researchers are building a compelling case for a more ...
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SETI may have been tuned to the wrong alien frequencies, study says

One of the longest-standing techniques in humanity’s search for life beyond Earth may be causing scientists to miss alien signals entirely, a new study finds. Since the very beginnings of the search ...
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Where are all the aliens? Maybe space weather is scrambling their transmissions

Add Yahoo as a preferred source to see more of our stories on Google. A transmission from a planet may begin as a tightly collimated narrowband signal (left), but after exposure to electrons and ...
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Space weather near stars may be hiding alien signals from Earth

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 ...