“This research shows that we are getting closer to technology and methods that could detect radio signals similar to the ones we send into space.”
Scientists have just completed an extensive search for signs of alien communications technology in the Milky Way's 'solar system 2.0'.
“This research shows that we are getting closer to technology and methods that could detect radio signals similar to the ones we send into space,” said Nick Tusay, a graduate student research fellow at Penn State and first author of the paper. “Most searches assume a powerful signal, like a beacon intended to reach distant planets, because our receivers have a sensitivity limit to a minimum transmitter power beyond anything we unintentionally send out.
The ATA's new capabilities, which include advanced software to filter signals, helped the team separate possible alien signals from Earth-based ones. The researchers said they believe that refining these methods and focusing on events like PPOs could help increase the chances of detecting alien signals in the future.
The TRAPPIST-1 system is a small, cool star about 41 light years from Earth. It has seven rocky planets, some of which are in the habitable zone, where conditions might allow liquid water to exist — an essential ingredient for life as we know it. This makes TRAPPIST-1 a prime target searching for life beyond Earth.
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