Using NASA's Spitzer Space Telescope, astronomers have found a likely solution to a centuries-old riddle of the night sky. Every…
NASA Administrator Charles Bolden spoke during a press conference, Tuesday, Feb. 2, 2010, at the National Press Club in Washington,…
This composite color infrared image of the center of our Milky Way galaxy reveals a new population of massive stars…
Artist's concept of the Solar Dynamics Observatory.
The US and Australian Governments participated in the ground breaking ceremony for the first 34 meter Beam Waveguide (BWG) antenna…
This striking astronaut photograph taken from the International Space Station (ISS) shows polar mesospheric clouds over the Southern Hemisphere on…
NASA Administrator Charles Bolden participates in a wreath laying ceremony as part of NASA's Day of Remembrance, Friday, Jan. 29,…
Though they are the largest and most widely scattered objects in the universe, galaxies do go bump in the night.…
Members of the STS-129 shuttle mission present a specially minted silver medallion to National Football League officials on Wednesday, Jan.…
An artist's conception of the LADEE spacecraft.