SpaceX's Falcon 9 rocket provides a piggyback ride for Portal's instrument package and more than 100 other payloads.

WASHINGTON — New analysis suggests that problems with NASA’s MAVEN Mars orbiter may be more serious than a simple communications glitch. NASA said Dec. 9 that it lost contact with the spacecraft three ...

Add Yahoo as a preferred source to see more of our stories on Google. A Mars spacecraft that has been orbiting the red planet for more than a decade has now been AWOL for more than a month. NASA first ...

HELSINKI — A senior Chinese space scientist and delegate to the country’s national congress is proposing the prioritization of an unprecedented orbiter mission to ice giant Neptune. Chinese ...

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. The orbiter, one of three zooming around Mars' atmosphere, had been working as expected before it ...

NASA’s MAVEN spacecraft, short for Mars Atmosphere and Volatile EvolutioN, launched November 2013 and entered Mars orbit in September 2014. After more than a decade of cutting edge orbital science, ...

NASA has lost contact with its MAVEN spacecraft, which has been orbiting Mars for more than a decade. The orbiter, launched in 2013 from Florida, studies the upper atmosphere of Mars to understand its ...