On July 23, 1999, the Space Shuttle Columbia blasted off from the Kennedy Space Center carrying the Chandra X-ray Observatory. In the two decades that have passed, Chandra's powerful and unique X-ray eyes have contributed ...
Astronomy
Jul 23, 2019
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From the Soviet Union's pioneering satellite to the first man on the Moon 50 years ago, here are 10 key dates in space exploration.
Space Exploration
Jul 20, 2019
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NASA has replaced the head of its human space exploration directorate in a major shake-up, US media reported Wednesday, as the agency scrambles to meet President Donald Trump's ambitious deadline to return astronauts to the ...
Space Exploration
Jul 11, 2019
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An inflatable decelerator technology that could one day help humans land on Mars will fly on the same Atlas V rocket as the JPSS-2 satellite.
Space Exploration
Jul 01, 2019
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Who will take the giant leap for womankind?
Space Exploration
Jun 15, 2019
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With the 50th anniversary of the Apollo 11 landing on July 20, a new paper by George Abbey, a senior fellow in space policy at Rice University's Baker Institute for Public Policy and the former director of NASA's Johnson ...
Space Exploration
Jun 12, 2019
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Herpes viruses reactivate in more than half of crew aboard Space Shuttle and International Space Station missions, according to NASA research published in Frontiers in Microbiology. While only a small proportion develop symptoms, ...
Cell & Microbiology
Mar 15, 2019
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The US space agency NASA on Wednesday cast a shadow on the future of its new heavy-lift rocket, the SLS—acknowledging development delays on a project that is already years behind.
Space Exploration
Mar 14, 2019
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SpaceX's Crew Dragon capsule splashed down in the Atlantic Ocean on Friday, completing a NASA demonstration mission that paves the way for the resumption of manned space flights from the US.
Space Exploration
Mar 08, 2019
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A sleek new American-built capsule with just a test dummy aboard docked smoothly with the International Space Station on Sunday, bringing the U.S. a big step closer to getting back in the business of launching astronauts.
Space Exploration
Mar 03, 2019
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NASA's Space Shuttle, officially named the Space Transportation System (STS), is the spacecraft currently used by the United States government for its human spaceflight missions and is scheduled to be retired from service in 2010. At launch, it consists of a rust-colored external tank (ET), two white, slender Solid Rocket Boosters (SRBs), and the orbiter, which is a winged spaceplane in the narrowest sense.
The orbiter carries astronauts and payload such as satellites or space station parts into low earth orbit, into the Earth's upper atmosphere or thermosphere. Usually, five to seven crew members ride in the orbiter. The payload capacity is 22,700 kilograms (50,000 lb). When the orbiter's mission is complete it fires its Orbital Maneuvering System (OMS) thrusters to drop out of orbit and re-enters the lower atmosphere. During the descent, the shuttle orbiter decelerates from hypersonic speed primarily by aerobraking and then for the landing phase it acts as a glider, making a completely unpowered (deadstick) landing.
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