Scientists are working to understand the curious phenomena of red sprites, green ghosts and blue jets high above ...

Colorado’s largest ski resort has a lot to offer in the warmer months, including scenic gondola rides, music festivals, world ...

Mary may have come into contact with Jesus because of his healing powers. “Seven demons had gone out of her,” says Luke (Luke 8:2). Some scholars believe that the Magdalene may be the same ...

"Milky seas” are one of the rarest reported forms of bioluminescence. A new scientific database may finally reveal the secrets of this ghostly phenomenon. Satellite imagery of visible light for ...

The best wildflower hiking trails in the U.S. Spring is in bloom. Here are our favorite places to frolic through fields of flowers, from the Pacific Northwest to the Appalachian Mountains.

Featuring never-before-seen views of galaxies and more than 2,100 newly discovered asteroids, the observations are only a ...

How to photograph the stars. From basic techniques to the kit you need, plus where to go to capture the best pictures, here’s how to get started in astrophotography.

This Harley-Davidson took the world’s first motorcycle ride powered by solar fuel. The bike motored along the shores of Switzerland’s Lake Zurich thanks to a new type of sustainable energy.

“When there is no water, nothing green, the sand becomes very strong, a very fast enemy,” says Sbai. “It takes a lot of land.” The desert is pressing in from every direction.

When humpbacks get stuck in fishing gear, their friends stick around to help. Are whales altruistic? A new scientific paper and a video present a compelling case the answer is “yes.” ...

(See more wildlife photos from across the globe.) The most ethical way to see big cats is in the wild, on safari. Photograph by Robert Harding Picture Library, National Geographic Image Collection ...

Ten-year-old Vidyun R. Hebbar of India won Young Wildlife Photographer of the Year, the competition’s other top distinction, for his up-close photograph of a tent spider, bathed in the lights ...