Is anybody out there? Probably. Most stars have planets; we've discovered more than 6,000 exoplanets thus far, and the most basic statistics point toward the existence of countless potentially ...

Researchers propose that tiny technological remnants from extinct alien civilizations could have landed on the moon after ...

The search for intelligent alien life reaches far beyond simply finding another habitable planet. Across the universe, scientists can look for signs that advanced civilizations may leave behind, from ...

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 ...

(Esben_H/iStock/Getty Images Plus) The Fermi paradox asks: If there are other civilizations in the Universe besides ours, why ...

For decades, SETI researchers have focused on finding narrow-band radio signals that might stand out from the natural universe. But what if an advanced civilization that wanted to communicate would ...

We’ve likely had at least one close encounter of the 3I kind before. Harvard scientist Avi Loeb claims that not only does 3I/ATLAS potentially have alien origins, but that this wouldn’t be the first ...

“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 ...

Add Yahoo as a preferred source to see more of our stories on Google. The great physicist Enrico Fermi first posed the challenging question over half a century ago, wondering why we appear to be alone ...

Add Yahoo as a preferred source to see more of our stories on Google. Image: NASA For roughly four billion years, the Moon has been collecting things. No weather to scrub the surface. No plate ...

Black holes appear built to hide energy, not advertise it. Yet a civilization wrapping one in vast collectors could create a detectable glow, turning one of the universe’s darkest objects into a ...

For decades, the idea of making contact with extraterrestrial life has fascinated scientists and the general public alike. While Hollywood often portrays alien encounters as inevitable, the reality is ...