Generally, states with large populations and wide-open skies reported the highest number of UFO sightings in the U.S.

The total lunar eclipse will be visible over North America, parts of South America, East Asia, Australia, New Zealand and the Pacific. If you live in the western United States, including Alaska, ...

Organizers Barney Burman and Danielle Bridges went to the outer limits, teaching a class called "Otherworldly Beauty." ...

Scientists in southern Spain are building next-generation telescopes to scan thousands of stars for signs of alien life.

Missouri isn’t exactly known for looking like the surface of an alien planet, but apparently nobody told Meramec Caverns in Sullivan about that. This underground wonderland looks like something a ...

Scientists might have just found Earth's icy, distant cousin a few hundred million light-years away. HD 137010 b is one of ...

From waterfalls that seem to disappear into nowhere to blood-colored water, these places are shrouded in mystery-even if science can explain most of them.

The historic Chateau at the Oregon Caves is an architectural gem that deserves recognition beyond its role as a place to ...

Harvard scientist Avi Loeb has slammed a seemingly far-fetched proposal to intercept interstellar comet 3I/ATLAS with a spacecraft, claiming that we’re putting energy in the wrong places.

Did you know? Sound from another planet, the wind on Mars, has been recorded and made audible with the help of headphones and ...

Step outside just after sunset and you may catch an unusual sight: six planets strung across the sky in a gentle arc. The phenomenon—often dubbed a “planetary parade”—isnt ...

Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...