NASA TV

The Progress 50 robotic supply ship approaches the International Space Station during the fly-around prior to docking on Monday.

By Tariq MalikSpace.com

An unmanned Russian spacecraft carrying nearly 3 tons of supplies arrived at the International Space Station Monday, less than six hours after blasting off.

The robotic Progress 50 resupply ship docked with the orbiting lab at 3:35 p.m. EST Monday after launching from Baikonur Cosmodrome in Kazakhstan at 9:41 a.m. EST. Such unmanned cargo trips have traditionally taken about two days.

The Progress 50 spacecraft is packed with about 2.9 tons of supplies for the space station's six-man Expedition 34 crew. On Saturday, the station astronauts discarded an older unmanned cargo ship, called Progress 48, in order to make room for Progress 50.

The outgoing Progress vehicle was filled with tons of trash and unneeded items and intentionally destroyed by burning up in Earth's atmosphere. [Space Station's Robot Cargo Ship Fleet (Photos)]

NASA TV

The unmanned Progress 50 supply ship blasts off from Kazakhstan's Baikonur Cosmodrome on Monday.

Progress 50, meanwhile, is delivering about 764 pounds (346 kilograms) of propellant, 110 pounds (50 kg) of oxygen and air, 926 pounds (420 kg) of water and about 3,000 pounds (1,360 kg) of spare parts, science gear and other supplies, according to a NASA description.

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Russia supply ship docks with space station