Enhanced color image from Juno

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.

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.

Photo by William Patino

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.

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.

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.

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

If you keep an open mind, there's more chance you'll catch the big ideas.