
In this 1966 photo, a plasma thruster at NASA's Lewis Research Center simulates Van Allen Belts, rings of radiation around…

Expedition 14 Commander Michael Lopez-Alegria, Flight Engineer Mikhail Tyurin and Spaceflight Participant Charles Simonyi landed safely southwest of Karaganda, Kazakhstan…

On July 4, 1997, Americans got more than a fireworks show, with NASA's first successful trip back to the surface…

The Hubble Space Telescope has captured the most detailed images to date of the open star clusters NGC 265 (top)…

A NASA satellite has captured the first occurrence of mysterious shiny polar clouds that form 50 miles above Earth's surface.…

A trio of astronauts from the Return to Flight crew train for their flight by floating in NASA's famed KC-135…

NASA's International Sun-Earth Explorer C (ISEE C) was undergoing testing and evaluation inside Goddard's dynamic test chamber when this photo…

This artist's concept illustrates the two types of spiral galaxies that populate our universe: those with plump middles, or central…

NASA's Hubble Space Telescope captured this "true color" mosaic of a small portion of the Orion Nebula, taken the Wide…

As it rockets toward its July 1 entry into Saturn's orbit, NASA's Cassini-Huygens spacecraft is capturing some stunning views of…