The curious minds at What If explore the possibility of an alien civilization existing on Proxima b, imagining how they might ...

What would really happen if aliens discovered Earth? Some scientists, including Stephen Hawking, warned that first contact ...

But now, 60 years after the Prime Directive was introduced to Star Trek lore, Starfleet Academy has just evolved the ...

New theoretical models have strengthened the case that immense, energy-harvesting structures orbiting their host stars could ...

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.

A scientist at the University of Glasgow has delved into the possible existence of ...

A "crowdsourced" project in which home computer users were enlisted to help analyze radio signals from space is ending after ...

Now, the planets of Tau Andromeda are overgrown with wildlife, nature reclaiming the skyscrapers of a once-advanced ...

Elon Musk didn't pitch a new rocket. He pitched a new reality. Speaking at SpaceX's Starbase facility in Texas earlier this ...

Embarking on a spur of the moment astronomy lesson, Musk explained that the sun makes up some 99.8% of mass of the solar system, and that Jupiter, the biggest planet, is just kind of a rounding error ...

Still, the fancy persists, implanted like a microchip, ever since Erich von Däniken’s 1968 best-seller, “Chariots of the Gods ...