As NASA's planetary exploration budget is squeezed, NASA scientists are finding new ways to lower the costs of future Mars rover missions.
This weekend's solar storm brought spectacular auroras over a big part of the Northern Hemisphere. Here are five facts about these dazzling – and sometimes dangerous – eruptions from our sun.
A year after the final flight of the Atlantis marked the end of NASA's Space Shuttle program, thousands of engineers and other workers who helped make the program possible are still looking for decent work.
SpaceX's Dragon space capsule has passed a main design review, brining the private spacecraft closer to carrying astronauts into orbit.
Orbiting at outskirts of the solar system some three billion miles from Earth, Pluto remains shrouded in mystery.
A trio of experienced astronauts blasted off Saturday night from Kazakhstan's Baikonour Cosmodrome to join the crew aboard the International Space Station.
Studying the speed of particles in solar storms may help predict dangerous impacts: the slower the particles' speed, the higher the risk, say NASA scientists.
More than nine out of 10 lemur species are threatened, conservationists concluded this week in Madagascar, home to more threatened species than any other country.
Solar Storm: Scientists say not to worry about the huge stream of electrically charged plasma that is barreling toward our planet at more than three million miles per hour.
Scientists have announced the discovery of a fifth moon of Pluto. Dubbed P5 for now, it is the smallest moon yet detected orbiting the frigid dwarf planet.
Using data from the Hubble telescope, SETI scientists spotted a fifth moon orbiting the icy dwarf planet Pluto.
In severe cases, solar storms can cause power outages, damage satellites, and disrupt GPS signals, but a US Space Weather Prediction Center forecaster says it will be 'a minor event.'
The discovery of 13,000-year-old stone projectiles and fossilized feces indicates the existence of a second founding culture in the Americas, in addition to the Clovis culture, say researchers.
Usually secretive snow leopard moms and cubs revealed in first-ever video in Mongolia.
A giant solar eruption may bring an exceptional weekend northern lights display for those as far south as California and Alabama, a NASA scientist says.
The remains turned up in a large rock in a laboratory at the University of Witwatersrand in South Africa, the university announced today.
Long considered a planet, Pluto was reclassified as a 'dwarf planet' in 2006 by the International Astronomical Union. Will the discovery of a fifth moon prompt astronomers to reconsider?
The recovery of a nearly two-million-year-old Australopithecus sediba fossil from a cave in South Africa will be broadcast live over the Web, probably beginning in November.
The strongest solar storm of the summer so far could send a wave of charged particles toward our planet that could supercharge northern lights displays, NASA scientists say.
Manhattanhenge: At 8:25 p.m. Thursday, New Yorkers will be treated to a unique spectacle of the setting sun aligning perfectly with Manhattan's street grid.