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SpaceX Cargo Capsule Reaches Int'l Space Station

By: NASA TV/CBS
By: NASA TV/CBS
A SpaceX Dragon cargo capsule overcame a potentially mission-ending technical problem to make a belated but welcome arrival at the International Space Station on Sunday (March 03).

This image from NASA-TV shows the capture of the Dragon capsule by a robot arm on the International Space Station as they passed over the South Atlantic Ocean early Wednesday Oct. 10, 2012. It's the first official delivery by the California-based SpaceX company under a $1.6 billion contract with NASA. The contract calls for 12 such shipments. (AP Photo/NASA)

A SpaceX Dragon cargo capsule overcame a potentially mission-ending technical problem to make a belated but welcome arrival at the International Space Station on Sunday (March 03).

Astronauts aboard the outpost used the station's robotic arm to pluck the capsule from orbit at 5:31 a.m. EST/1031 GMT as the ships sailed 250 miles (400 km) over northern Ukraine.

Flight controllers at NASA's Mission Control in Houston then stepped in to drive the capsule to its berthing port on the station's Harmony connecting node. Docking occurred at 8:44 a.m. EST/1344 GMT.

The Dragon capsule, loaded with more than 2,300 pounds (1,043 kg) of science equipment, spare parts, food and supplies, blasted off from Cape Canaveral Air Force Station in Florida on Friday (March 02) aboard a SpaceX Falcon 9 rocket for the second of 12 planned supply runs for NASA.

SpaceX is the first private company to fly to the station, a $100 billion project of 15 nations.

Dragon was to have arrived at the station on Saturday (March 02) but a problem with its thruster rocket pods developed soon after reaching orbit. Engineers sent commands for Dragon to flip valves and clear any blockage in a pressurization line in an attempt to salvage the mission.

By Friday evening, Dragon had fired its thruster rockets to raise its altitude and begin steering itself to rendezvous with the station.

Once Dragon's hatch is open, the station crew will spend the next several days unpacking the food, clothing, supplies and science experiments from the capsule. The research includes studies on plant seedlings, mouse stem cells and combustion in microgravity.

SpaceX also sent the crew a gift of fresh fruit from an employee's father's orchard, company president Gwynne Shotwell said.

Ground controllers will use the station's robot arm again on Wednesday (March 06) to unpack equipment for a future spacewalk that is stowed in Dragon's unpressurized trunk.

Once the capsule is unloaded, the crew will begin refilling it with 3,000 pounds (1,361 kg) of unneeded and broken equipment and science samples for analysis on Earth.

Dragon is the only station freighter that makes return trips, a critical service that was lost after the U.S. shuttle program ended in 2011. Cargo ships flown by Russia, Europe and Japan incinerate in the atmosphere after leaving the station.

Dragon's departure and parachute splashdown in the Pacific Ocean is scheduled for March 25.

SpaceX cargo capsule docks with International Space Station one day late.


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