
The Colorado Plateau of Arizona, Colorado, New Mexico, and Utah is made of mostly flat-lying layers of sedimentary rock that…

This 2003 photo from the International Space Station shows a pair of volcanoes in Mexico. As part of the “Ring…

This image from the Moderate Resolution Imaging Spectroradiometer MODIS on NASA’s Terra satellite shows the Klyuchevskaya volcano on Russia’s Kamchatka…

Even if the moon really were made of green cheese it probably wouldn’t look this bizarre. Still, this mosaic of…

This glowing region reveals arcs and bubbles formed when stellar winds – streams of charged particles ejected by the Trapezium…

Astronaut Scott Parazynski smiles for a photograph while he and the crew of STS-120 walk inspect the underside of the…

Professor Stephen Hawking ireceived the world’s oldest award for scientific achievement – the Royal Society’s prestigious Copley medal – for…

This artist’s concept shows a brown dwarf surrounded by a swirling disk of planet-building dust. NASA’s Spitzer Space Telescope spotted…

The Egg Nebula is taking a beating. Like a baby chick pecking its way out of an egg, the star…

NASA Station Science Officer Ed Lu snapped this stunning image of the wildfires ravaging Southern California’s San Bernardino National Forest…