NASA's Landsat 8 satellite snapped a stunning top-down view of an "unusually spectacular" Mount Etna eruption. Infrared data makes the volcano's lava river really pop.

Outside of a handful of valleys in Antarctica, the Atacama is the driest place on Earth. The inhospitable landscape of sand, ...

We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

A new image from the Hubble Space Telescope shows a cosmic cloudscape, with clouds of dust and gas swirling in beautiful colors.