This video examines whether alien plants could actually be blue and what physics says about plant color beyond Earth. It ...

Alien vs. Captain America #4 hits stores Wednesday with a chest-bursting WWII finale. Will Cap stop Red Skull's Xenomorph army or lose the war?

From the chilling echoes of Roswell to the high-tech probes of today’s Pentagon, America’s enduring obsession with UFOs reminds us that the skies hold mysteries far beyond our grasp—or at least, ...

"That looks like it could be from an alien planet," a user wrote. Indeed, the massive beet cleared five inches in size, based ...