The Delaware River as seen from the walking bridge that connects Bulls Island State Park in New Jersey to Lumberville, Pennsylvania.
Image credit and copyright: Lew Fuller.
Silex Spring in Yellowstone National Park, Wyoming, is heated to steaming by the subterranean magma chamber called the Yellowstone Hotspot. The colors in the pool are caused by layers of bacteria that grow in the heated water. And of course that’s the Milky Way above it.
Image credit and copyright: Dave Lane
A geomorphological feature known as the Badlands Guardian, located near Medicine Hat in the southeast corner of Alberta, Canada. Although it seems to be made up of mountains, it’s actually a valley, caused by wind and water erosion of the soft, clay-rich soil.
As viewed from the air, the feature looks like a human head in a Native American headdress. Because of the man-made road and oil well, he also appears to be rocking earbuds.
The fissure of Laki, an Icelandic volcano. Unfortunately, the article it comes from (see link below) is about a volcano that is apparently about to erupt.
This is not Earth. The mountains in the background are one edge of Hebes Chasma on Mars, a depression north of Valles Marineris.
In the foreground is Hebes Mensa, a three-mile-high mesa that has collapsed at one end. Why? One hypothesis is that some of the lower layers of the rock making up the mesa contained a lot of salt, and that the salt has dissolved in melted ice flows that then drained into an underground aquifer.
Image credit and copyright: ESA/DLR/FU Berlin (G. Neukum).
This beautiful rose is M57, the Ring Nebula. The central ring can be seen with a small telescope, but this deep exposure, combining data from three telescopes, also shows the filaments of glowing gas extending out from it.
Image credit: Hubble, Large Binocular Telescope, Subaru Telescope.
Composition and copyright: Robert Gendler.