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

Most alien-signal searches listen to a narrow part of the radio spectrum, but astronomers are now testing higher frequencies that have barely been explored. A first search using archived ALMA ...

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

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

These cosmic giants might one day propel our spacecraft, process unimaginable amounts of data, and even reveal advanced ...

R L Drake explores the Fermi Paradox: why, given the Milky Way's billions of potentially habitable planets and the Drake Equation's estimate of 12,500 possible ...

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 ...

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 ...

For decades, scientists searching for extraterrestrial intelligence have focused their telescopes on a small slice of the ...

“There is a silence in the night sky that has bothered me for as long as I can remember.” That line, attributed to Richard Feynman, lands because it gets at a simple, stubborn feeling. The sky looks ...

In 1961, Dr Frank Drake proposed a probabilistic, though highly speculative, equation to determine the number of intelligent ...

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