Missing technosignatures? Turbulent plasma may blur ultra-narrow signals before they leave their home star systems

Missing technosignatures? Turbulent plasma may blur ultra-narrow signals before they leave their home star systems

A new study by researchers at the SETI Institute suggests that stellar "space weather" could make radio signals from extraterrestrial intelligence harder to detect. Stellar activity and plasma turbulence near a transmitting planet can broaden an otherwise ultra-narrow signal, spreading its power across more frequencies and making it more difficult to detect in traditional narrowband searches. The paper is published in The Astrophysical Journal.

അന്യഗ്രഹ ജീവികളുണ്ടോ? തിരച്ചിൽ എങ്ങുമെത്താത്തത് എന്തുകൊണ്ട്? സൂചനകളുമായി പുതിയ പഠനം

New SETI research suggests stellar plasma blurs alien radio signals, making them hard to detect. Learn how space weather impacts our search for life.

SETI might be missing alien signals because “stellar ‘space ...

SETI might be missing alien signals because “stellar ‘space weather’ may blur ultra-narrow radio signals from extraterrestrial civilizations before they leave their home star systems”. SETI usually looks for “extremely sharp frequency spikes”.

Scientists reveal one key way we might have missed signals from aliens – UK Times

Sign up to our free weekly IndyTech newsletter delivered straight to your inbox Sign up to our free IndyTech newsletter Sign up to our free IndyTech newsletter We might have missed signals from aliens because they are being disrupted by the conditions of space, scientists have warned. Messages being sent from distant planets could be disrupted by activity from nearby stars, they warn. That solar weather would broaden an otherwise ultra-narrow si…

Stellar Turbulence Could Be Hiding Alien Radio Signals

For decades, radio telescopes have swept the sky listening for alien signals. They've found nothing. A new study offers a possible explanation for the lack of results, and it has nothing to do with whether extraterrestrial civilizations exist. The post Stellar Turbulence Could Be Hiding Alien Radio Signals appeared first on StudyFinds.

Why SETI Might Have Been Missing Alien Signals - Astrobiology

A new study by researchers at the SETI Institute suggests stellar “space weather” could make radio signals from extraterrestrial intelligence harder to detect. Stellar activity and plasma turbulence near a transmitting planet can broaden an otherwise ultra-narrow signal, spreading its power across more frequencies and making it more difficult to detect in traditional narrowband searches. […] The post Why SETI Might Have Been Missing Alien Signal…