Image of the DayAn artist's conception shows a gas-giant planet orbiting very close to its parent star, creating searingly hot conditions on the...While driving eastward toward the northwestern flank of "McCool Hill," the wheels of Mars Exploration Rover Spirit churned up the...Scientists Carolyn Griner, Ann Whitaker and Mary Johnston (top to bottom) are shown undergoing training at the Marshall Space Flight...As spring now dawns on the Northern Hemisphere of Mars, sand dunes near the pole, as pictured above, are beginning...In 1787, astronomer William Herschel discovered the Eskimo Nebula, which from the ground resembles a person's head surrounded by a...This view of one of the most dynamic and intricately detailed star-forming regions in space, located 210,000 light-years away in...In 1994, during its flight, the Clementine spacecraft returned images of the Moon. In addition to the geologic mapping cameras,...Northern Arizona is best known for the Grand Canyon. Less widely known are the hundreds of geologically young volcanoes, at...NASA Acting Administrator Fred Gregory, center, got a close up look at the Virgin Atlantic GlobalFlyer after its landing in...Variable star V838 Monocerotis lies near the edge of our Milky Way Galaxy, about 20,000 light-years from our sun. Still,...This picture from NASA's Mars Global Surveyor could help settle a decades-long debate about whether the planet had long-lasting rivers...Cuba's island Cayo Largo del Sur is seen from the International Space Station in November 2005. No more than 15.5...High school senior Panna Felsen arm wrestles an artificial arm built by a group of students at Virginia Tech. It's...Newborn stars peek out from beneath their natal blanket of dust in this dynamic image of the Rho Ophiuchi dark...Scientists have made the first conclusive discovery of water vapor in the atmosphere of a planet beyond our solar system,...For millions of years, Antarctica, the frozen continent at the southern end of the planet, has been encased in a...Photographer David Cortner recorded this dramatic composite sequence of the November 8 total lunar eclipse in the skies over Connelly's...The shape, density and spin of the asteroid Eros combine to create a bizarre pattern of what is "uphill" and...NASA's Hubble Space Telescope captured the first-ever picture of a group of five star-like images of a single distant quasar....Pictured at Left: Even winter's icy grip can't contain the lush green hues of Ireland in this January 2003 photo...The Hubble Space Telescope captured this image of the Stingray Nebula, the youngest known planetary nebula. In this image, the...An Expedition Two crewmember aboard the International Space Station (ISS) captured this overhead look at the smoke and ash regurgitated...This Jan. 31, 2006, image shows the increased activity of Augustine Volcano in Cook Inlet, Alaska near Anchorage. Such increased...Backdropped against the blackness of space, the European Space Agency's Columbus laboratory and associated ESA hardware sit in the aft...When the Expedition 11 crew - NASA astronaut John Phillips and Russian cosmonaut Sergei Krikalev - arrive at the International...Giant jets of subatomic particles moving at nearly the speed of light have been found coming from thousands of galaxies...Penetrating 25,000 light-years of obscuring dust and myriad stars, the Hubble Space Telescope has provided the clearest view yet of...Lima, Peru, is featured in this image photographed from the International Space Station in March 2005. Located on the broad...Our Milky Way is a dusty place. So dusty, in fact, that we cannot see the center of the galaxy...Could it be a glimpse of the interplanetary bunny trail? Probably not, but this nighttime infrared image from the NASA's...A flock of birds took flight shortly after the Space Shuttle Atlantis arrives at Pad 39B after being rolled out...This artist's concept illustrates a comet being torn to shreds around G29-3, a so-called dead star, or white dwarf. NASA's...Astronaut Mike Fincke shares the story of his extraordinary six-month stay in space with NASA employees at a recent gathering...RCW 79 is seen in the southern Milky Way, 17,200 light-years from Earth in the constellation Centaurus. The bubble is...When scientists need longer exposure times in high altitudes, they use scientific balloons like the one pictured here. Made of...As United States has undergone a steady process of urbanization, scientists are becoming more concerned about the long-term effects. Unlike...The Navy submarine pictured in this image underwent testing in the National Transonic Facility at Langley Research Center in this...Aboard the International Space Station, Expedition 10 Commander Leroy Chiao used a digital camera April 6 to photograph the rollout...Three striking and important areas of Tanzania in eastern Africa are shown in this color-coded shaded relief image from the...Haze from the fires in Southern California make sun spots more visible in this photo from NASA's Dryden Flight Research...
