WASHINGTON Initial tests in Nevada on a compact nuclear power system designed to sustain a long-duration NASA human mission on the inhospitable surface of Mars have been successful and a full-power run is scheduled for March, officials said on Thursday.
WASHINGTON There's not a pot of gold at the end of the rainbow. There's an iridescent dinosaur.
MEXICO CITY A fossilized dinosaur tail discovered in Morocco will be auctioned on Tuesday night in Mexico to raise funds for the reconstruction of thousands of schools damaged by two earthquakes that struck the Latin American nation in September.
WASHINGTON Scientists using images from an orbiting NASA spacecraft have detected eight sites where huge ice deposits near the Martian surface are exposed on steep slopes, a potential source of water that could help sustain future human outposts.
NEW DELHI India launched its 100th satellite on Friday as Prime Minister Narendra Modi seeks to project the country as a global low-cost provider of services in space.
WASHINGTON In sandstone next to the high tide mark at the edge of Bass Strait in southeastern Australia, scientists have unearthed fossils of a two-legged, turkey-sized, plant-eating dinosaur apparently swept away in a large, powerful ancient river.
SpaceX on Tuesday defended the performance of one of its rockets used to launch a U.S. spy satellite that is believed to have been lost after failing to reach orbit, adding that no changes were anticipated to its upcoming launch schedule.
WASHINGTON A U.S. spy satellite that was launched from Cape Canaveral, Florida, aboard a SpaceX rocket on Sunday failed to reach orbit and is assumed to be a total loss, two U.S. officials briefed on the mission said on Monday.
TOKYO Japanese astronaut Norishige Kanai, on a mission to the International Space Station, apologized on Wednesday for saying he had grown 9 cm (3.5 inches) while in space and expressing concern about whether he'd be safe on his return to Earth. | Video
BEIJING China's Tiangong-1 space station is not out of control and does not pose a safety threat, a top Chinese spaceflight engineer said on Monday, after reports that the station was falling toward earth.
WASHINGTON The U.S. government is seeking to further protect the "conscience and religious freedom" of health workers whose beliefs prevent them from carrying out abortions and other procedures, in an effort likely to please conservative Christian activists and other supporters of President Donald Trump.