
The first hint of what will become of our sun was discovered inadvertently in 1764. At that time, Charles Messier…

Laser power stations, perhaps drawing energy from the local environment, might one day propel spacecraft throughout the solar system, as…

Hurricane Emily menaces Mexico's Yucatan peninsula in this July 16, 2005 image from the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument…

The ninth crew of the International Space Station rocketed into orbit from Kazakhstan's Baikonur Cosmodrome at 11:19 p.m. EDT on…

In the center of star-forming region 30 Doradus lies a huge cluster of the largest, hottest, most massive stars known.…

The spiral galaxy M33 also is called the Triangulum Galaxy for the constellation in which it resides. About four times…

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

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

The pale blue Earth serves as a backdrop for astronaut Michael Gernhardt, who is attached to the Shuttle Endeavour's robot…

This image of the elliptical galaxy NGC 1132 and its surrounding region combines data from NASA's Chandra X-ray Observatory and…