U.S. space agency NASA said Friday it's ready to begin final design and construction of its next Mars rover, which is set to look for evidence of past life on the Red Planet.
U.S. space agency NASA said on Friday it will make a second attempt to expand the experimental inflatable room at the International Space Station on Saturday.
U.S. space agency NASA said Wednesday it will intentionally light a "large-scale fire" on an unmanned cargo spaceship scheduled for launch next week as part of an effort to increase understanding of how an accidental fire might behave in space.
U.S. astronaut Scott Kelly, who recently completed a year-long mission on the International Space Station, will retire from NASA effective April 1, the U.S. space agency said Friday.
NASA plans to repair a Mars spacecraft that was grounded in December because of a leak in its primary science instrument, putting the mission back on track for another launch attempt in 2018, the U.S. space agency said on Wednesday.
SpaceX, Orbital ATK and newcomer Sierra Nevada Corp. each receive minimum of at least six unmanned missions
A private U.S. cargo spaceship was launched to the International Space Station (ISS) on Sunday afternoon, months after two U.S. commercial shipments were destroyed in launch explosions.
U.S. space agency NASA announced on Monday it has found "strong" evidence that there is liquid water intermittently flowing on present-day Mars.
(CNN)NASA said Thursday that its Kepler spacecraft has spotted "Earth's bigger, older cousin": the first nearly Earth-size planet to be found in the habitable zone of a star similar to our own.
NASA launches Wallops Rocket with technology experiments
U.S. space agency NASA said Wednesday it has ordered the first-ever commercial crew flight to the International Space Station from the Boeing Company as part of an ongoing effort to restore America's human spaceflight capabilities by 2017.
Astronauts returned to the U.S. segment of the International Space Station Wednesday afternoon after a false alarm prompted an emergency evacuation to the Russian side, U.S. space agency NASA said.
Comet Siding Spring may have created "an impressive meteor shower" that altered the upper atmosphere's chemistry of Mars for hours as it whizzed past the Red Planet last month, U.S. space agency NASA said Friday.
An unmanned rocket operated by private U.S. firm Orbital Sciences Corp. exploded Tuesday seconds after its launch, NASA TV showed.
U.S. space agency NASA said Wednesday that it has completed a rigorous review of the Space Launch System (SLS), the world's largest rocket under development to take humans beyond Earth orbit and to Mars.
Ocean within Saturn's largest moon, Titan, could be as salty as Earth's Dead Sea, U.S. space agency NASA said Wednesday.
U.S. space agency NASA has suspended all contacts with its Russian counterpart Roscosmos except for ongoing activities aboard the International Space Station (ISS), according to an internal letter published by the U. S. space news website Spaceref on Wednesday, citing U.S.-Russian tensions over Ukraine and Crimea.
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