Black holes can release enormous energy through hot disks, surrounding plasma and powerful jets, enough to support a ...

Looking ahead: Existing radio surveys may contain signals that were never recognized as potential technosignatures. New ...

For decades, science fiction writers have tried their best to prepare us for eventual contact with aliens. Their efforts are dominated by several recurrent tropes. There's the invasion by a warlike ...

A new study published as a preprint on arXiv suggests that advanced extraterrestrial civilizations might not need to surround ...

Searching for extraterrestrial intelligence has so far primarily meant focusing on one particular type of signal—and that ...

Elon Musk’s plans for the future of SpaceX, and humanity, are rooted in an idea conceived in the 1960s when astronomers began to pick up mysterious, unknown radio sources in the cosmos. Soviet ...

The best way to find alien technosignatures is to look for ones that have long survived their creators, according to a new paper. Reading time 3 minutes In our search for life beyond Earth, we might ...

Astronomers may have been listening for alien civilizations in only a small slice of the radio spectrum while overlooking a largely unexplored range of higher frequencies. Using archived data from the ...

The Fermi paradox asks why we haven’t found aliens yet. Scientists say the answer may lie in timing, technology, and the vast scale of space.

They’re hole-ar powered. If super-advanced alien civilizations exist, they would surely require insane amounts of energy to ...