Alien probes could already be hiding somewhere in our Solar System – and our current surveys are nowhere near good enough to rule them out, according to a NASA‑linked study presented this month by ...
A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...
"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...
SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...
Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...
An interstellar comet known as 3I/ATLAS, which swept past the Sun in 2024, could be a 12‑billion‑year‑old relic from deep ...