Wow! Photo by Grafixart Sam of Iceland's Vesturhorn mountain.

People see and photograph shelf clouds most often when these clouds are moving just ahead of intense lines of thunderstorms.

Russ Adams captured this glorious image in Pike County, Illinois on May 26, 2018.

Harvey, Irma and Maria - all 2017 hurricanes - are among the top 5 costliest Atlantic hurricanes since record-keeping began in 1851.

My best sprite lightning capture to date, said long-time observer Paul Smith.

Tommy Richardsen captured this image near Skjervøy in northern Norway.

Astronauts aboard the International Space Station captured these images of Mount Shasta while orbiting over northern California at different times of the year.

"Eerie!" thought Michael Scully in North Carolina on Monday morning, when he caught this image with his iPhone. Turns out it was a rocket launch from Wallops Island of an uncrewed Cygnus cargo ship, due to reach the International Space Station today.

One World Trade Center - aka Freedom Tower - is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City.

Photographer Karthik Easvur reminds us that our galaxy's center is 25,000 light-years away. So light from the galactic center that reached the sensor of his camera started its journey 25,000 years ago.