Laser power stations, perhaps drawing energy from the local environment, might one day propel spacecraft throughout the solar system, as…
The first hint of what will become of our sun was discovered inadvertently in 1764. At that time, Charles Messier…
The spiral galaxy M33 also is called the Triangulum Galaxy for the constellation in which it resides. About four times…
This image of the elliptical galaxy NGC 1132 and its surrounding region combines data from NASA’s Chandra X-ray Observatory and…
The pale blue Earth serves as a backdrop for astronaut Michael Gernhardt, who is attached to the Shuttle Endeavour’s robot…
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…