NASA says glitch on Boeing rocket delays launch again

NASA plans to replace an engine controller aboard its massive SLS rocket after finding a communications glitch with the system's avionics during preflight testing, the latest setback in a program for which Boeing Co. is the ...

SpaceX launching four astronauts to ISS

After a series of delays, Elon Musk's private company SpaceX is set to launch four astronauts to the International Space Station on Wednesday night on the "Crew-3" mission.

Boeing delays key uncrewed test flight to ISS

Boeing delayed an uncrewed flight of its Starliner capsule to the International Space Station (ISS) on Tuesday over a propulsion issue, pushing back by at least a day a key test it last attempted in 2019.

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Space Shuttle

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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