Space station catches 'a Dragon by the tail'

A private spacecraft docked with the International Space Station on Friday, a milestone in a new era of commercial space flight.

The docking happened just before 10 a.m. ET, almost two hours later than planned, when the station's robotic arm captured the unmanned SpaceX Dragon spacecraft.

A radar system aboard the unmanned SpaceX Dragon that measures distance to the station had picked up a different part of the space station, meaning it could not dock properly, NASA said.

"Looks like we caught a Dragon by the tail," astronaut Don Pettit said after capturing the capsule with the robotic arm, according to NASA.

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