This strange phenomenon is called a "cloud inversion", and when it happens the results are spectacular

Aug 19, 2016; 8:00 AM ET Lightning always looks pretty cool, but it's rare that it takes a definitive shape. During a storm at Petrified Forest National Park, Arizona, some unusual lightning took on the shape of an angry T-rex.

The beautiful landscapes of southern Bavaria, Germany, Europe. By Johannes Heuckeroth.

Photographer Shane Kalyn sums this scene up nicely, “There is an ethereal, otherworldly feeling to this photograph, as this little island in the middle of Tumuch Lake in northern British Columbia appears as if it’s floating in the clouds. To bring us back to Earth, a fish has left a ripple in the water on the left-hand side of the shot. The scene was amazing to witness, let alone be lucky enough to photograph—totally the right place at the right time.”

The blue and white area is the dry river bed of the Tsauchab. Black dots of vegetation are concentrated close to the river’s main route, while salt deposits appear bright white. Running through the river valley, a road connects Sossusvlei to the Sesriem settlement. At the road’s 45th kilometre, seen at the lower-central part of the image, a white path shoots off and ends at a circular parking area at the base of a dune. This is Dune 45, a popular tourist stop on the way to and from Sossusvlei. In this image, there appears to be some shadow on the western side. From this we can deduce that the image was acquired during the late morning.

Photo by Patrik Oberlin.

Take a look at this stunning footage showing clouds flowing through a mountain range like a waterfall on April 18, in the Hunan Province of China.

Photograph by Tiger Seo.

Photographer: Ivana Kali Summary Authors: Ivana Kali; Jim Foster The photo above showing a spectacular set of crepuscular rays was taken from Šibenik, Croatia, just before sunset on February 10, 2016.

"I was waiting eagerly for the first cold winter morning after the snowy day. Finally the conditions were just as I wanted them to be. Still lake, beautiful pink/purple morning tones, snow on the trees and some fog for mystic atmosphere." Photograph by Aleš Krivec.

Denali (also known as Mount McKinley, its former official name) is the highest mountain peak in North America, with a summit elevation of 20,310 feet (6,190 m) above sea level. At some 18,000 ft (5,500 m), the base-to-peak rise is the largest of any mountain situated entirely above sea level.

If you're determined to see the northern lights, you'll want to take advantage of this forecast service.

There are two reasons why winter is the best time to grab your camera and head out to see the sunrise.

It's no wonder that this strange and spectacular lake draws shutterbugs from all over the world.

The Aleutian Islands are a chain of 14 large volcanic islands and 55 smaller ones belonging to both the United States and Russia. Photo by Chris Burkard, and more great shots are at the source included.

Maly Semyachik is a stratovolcano located in the eastern part of Kamchatka Peninsula, Russia. Three overlapping stratovolcanoes were constructed sequentially along a NE-SW line, with the youngest cone, Tseno-Semyachik, at the southwest end. A hot, acidic crater lake fills the historically active Troitsky Crater, which formed during a large explosive eruption of Ceno-Semiachik about 400 years ago.

British artist Andy Goldsworthy's sculptures melt and decay. "It's not about art," he says. "It's just about life, and the need to understand that a lot of things in life do not last."

View from Montecatini Alto,Italy,September 24, 2015

The Moon was ever-so-slightly eclipsed as it rose over the quebradas (badlands) tonight. Sunday September 27, 2015