Are we alone in the universe? Consider mysterious "extraterrestrial" radio signals. Unexplained gases on other planets.

Harvard astrophysicist Avi Loeb has floated the provocative idea that humans might themselves be alien‑made 'autonomous probes,' built through advanced synthetic biology rather than evolving entirely ...

From microscopic organisms living on frozen worlds to bizarre creatures drifting through alien skies, this journey explores how life might evolve far beyond Earth. Trump backtracks on 20% Hormuz toll ...

Eventually, we'll launch a mission dedicated solely to studying an interstellar object. When that day comes, which one should ...

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 ...

Add Yahoo as a preferred source to see more of our stories on Google. A new study has found that stellar "space weather" could be making it significantly harder to detect potential signals from aliens ...

Billed as the “world’s first museum of AI arts,” Dataland uses wearables and troves of material from the Amazon to merge ...

A new SETI study suggests we may be overlooking alien signals not because they aren't there, but because their own stars are scrambling them before they escape into space. Turbulent plasma and ...

This article is part of “The Young American Scientists,” which includes stories of 28 extraordinary scientists poised to change the world, as well as a deep look at the past, present and future of ...

Pluto's frozen landscapes and hazy atmosphere captured by the New Horizons mission in 2015. (NASA/Johns Hopkins University ...

Ever so slightly bigger than Earth, the exoplanet LHS 3844b orbits its parent star, LHS 3844, a red dwarf 48.5 light-years ...

Astronomers may have witnessed one of the rarest and most dramatic cosmic events ever seen: a long-sought intermediate-mass black hole ripping apart a dense white dwarf star and devouring it. The ...