Bioluminescent Plankton in Iran, by Pooyan Shadpoor

Jasper National Park has a great variety of scenic waterfalls and each has its own unique charm due to its geological makeup. The steps of the Tangle Falls is what make this sight so photogenic. The water literally cascades, not falls, over various tiers.

Enhanced color image from Juno

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.

The Caiyuanba Bridge is a arch bridge which crosses the Yangtze River in Chongqing, China. Completed in 2007, the arch spans 420 metres (1,380 ft) ranking among the longest arch bridges in the world. The bridges carries 6 lanes of traffic and two track of Chongqing Rail Transit Line 3 between the Nan'an District south of the Yangtze River and the Yuzhong District to the north.

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.

Taken at Phinda Forest Lodge, South Africa by Cliff Rosenberg.

Long before the $5 shake, this one was probably closer to $.50.

A wildfire that started in western Arizona and jumped the Colorado River into California, near Needles, California, April 6, 2016.

Photo by William Patino

This eye-catching image of the planetary nebula Abell 33 was taken by astronomers using the European Southern Observatory’s Very Large Telescope in Chile. Created when an ageing star blew off its outer layers, this beautiful blue bubble is, by chance, aligned with a foreground star. This cosmic gem is unusually symmetric, appearing to be almost perfectly circular on the sky.

People walk on a hill covered with nemophila flowers in full bloom at Hitachi Seaside Park in Hitachinaka, Ibaraki Prefecture, Japan.

Andy Goldsworthy is an extraordinary, innovative British artist whose collaborations with nature produce uniquely personal and intense artworks. Using a seemingly endless range of natural materials—snow, ice, leaves, bark, rock, clay, stones, feathers petals, twigs—he creates outdoor sculpture that manifests, however fleeting, a sympathetic contact with the natural world. Before they disappear, or as they disappear, Goldsworthy, records his work in superb colour photographs.

A farmer tends to an onion crop on the slopes of Mount Cereme, Majalengka, West Java, Indonesia.