For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what ...

Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf star from view, after it drastically dimmed a sun-like star for around nine ...

Moon as seen from Space Planet surface. The surface of Moon, strewn with small rocks and sand. Flight over Moon craters. Conception space abstract background. Moon as seen from Space Planet surface.

In this photo provided by El Salvador's presidential press office, a prison guard transfers deportees from the U.S., alleged to be Venezuelan gang members, to the Terrorism Confinement Center in ...

For 60 years, "Star Trek" has been boldly going places — sometimes where no one has gone before, and other times exactly where it's already been, but from a different point of view. Gene Roddenberry ...

Add Yahoo as a preferred source to see more of our stories on Google. The Enterprise as it appears in Star Trek: The Animated Series - NBC For 60 years, "Star Trek" has been boldly going places — ...

There’s no denying the allure of alien artifacts. Science fiction is awash in the material remnants of extraterrestrial civilizations, which surface in everything from the classic books of Arthur C.