Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

Researchers who listen for signs of non-human life say signals ‘can slip below detection thresholds, even if it’s there’ ...

Technosignatures are theoretical signs of technologically advanced alien civilizations, but so far, none of those civilizations have phoned home. Researchers from the Search for ExtraTerrestrial ...

Solar storms around distant stars may be erasing alien radio signals before we ever hear them In A Nutshell Stellar winds and solar storms around distant stars may be distorting alien radio signals ...

Stellar plasma can smear alien radio signals before they escape their star system, making them harder for astronomers to detect.

Humans should look to planetary alignments outside of the solar system when searching for signatures of extraterrestrial communications, scientists say. The nascent search for radio transmissions from ...