US EditionWhy SETI Might Have Been Missing Alien Signals
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4 Articles
Active stars could change possible radio signals from alien civilizations close to their source so much that they disappear in cosmic noise
Why SETI might have been missing alien signals
Turbulent plasma near distant stars could blur ultra-narrow signals before they leave their home star systems, making them difficult to detect.At a Glance: New Insight: Stellar “space weather” may blur ultra-narrow radio signals from extraterrestrial civilizations before they leave their home star systemsThe Challenge: SETI searches typically look for extremely sharp frequency spikes. If a signal is broadened by plasma turbulence near its source…
A recent study has highlighted the fact that we may not be able to detect radio signals emitted from the far reaches of space. SETI antennas scan the sky every day hoping to detect an extraterrestrial radio signal. According to a study by the SETI Institute, we may not be able to detect extraterrestrial radio signals from Earth. Stars could weaken the signals to the point of being undetectable. Inaudible signals? The search for life beyond Earth…
A new study by the SETI Institute suggests that the spatial climate of stars could distort possible radio signals from extraterrestrial civilizations, if they existed, before they left their planetary system.
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