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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 ...
SETI

SETI Institute tracks pulsar “twinkle” to reveal how space distorts radio signals

December 10, 2025, Mountain View, CA -- For 10 months, a SETI Institute–led team watched pulsar PSR J0332+5434 (also called B0329+54) to study how its radio signal "twinkles" as it passes through gas ...
Phys.org

Filtering terrestrial contamination in the search for alien signals

How can radio astronomers successfully identify extraterrestrial radio signals while discerning them from Earth-based radio signals? This is what a recent study published in The Astronomical Journal ...
Phys.org

Radio signal from the very early universe offers clues about the first stars

Understanding how the universe transitioned from darkness to light with the formation of the first stars and galaxies is a key turning point in the universe's development, known as the Cosmic Dawn.
Forbes

Garbled Radio Signals May Explain Why We Haven’t Heard From Aliens

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Scientists have searched the skies for alien radio signals for more than 60 years, but all ...
The Conversation

SETI’s ‘Noah’s Ark’ – a space historian explores how the advent of radio astronomy led to the USSR’s search for extraterrestrial life

The planetary radar, built in 1960 in Crimea, from which the Morse signal ‘MIR, Lenin, USSR’ was sent in November 1962. National Radio Astronomy Observatory Archive As humans began to explore outer ...