Hurricane might delay SpaceX-NASA return trip from ISS

The first US astronauts to reach the International Space Station on an American spacecraft in nearly a decade might not come home this weekend as scheduled because of Hurricane Isaias, NASA said Friday.

SpaceX begins final countdown for Saturday launch

SpaceX began fueling its Falcon 9 rocket on Saturday as it prepared to send two veteran NASA astronauts to the International Space Station in a historic first crewed mission by a commercial company.

What you need to know about SpaceX's 'Demo-2' mission

SpaceX's "Demo-2" mission from NASA's Kennedy Space Center in Florida this weekend will be the first flight with astronauts aboard the Crew Dragon capsule built by entrepreneur Elon Musk's commercial space company.

'Bummed out': SpaceX launch scrubbed because of bad weather

The launch of a SpaceX rocket ship with two NASA astronauts on a history-making flight into orbit was called off with less than 17 minutes to go in the countdown Wednesday because of thunderclouds and the risk of lightning.

2 U.S. astronauts board SpaceX rocket for historic launch

With thunderstorms threatening a delay, two NASA astronauts climbed aboard a SpaceX rocket ship Wednesday for liftoff on a history-making flight that was seen as a giant leap forward for the booming business of commercial ...

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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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