After a two-day chase, the Dragon spacecraft caught up to the orbiting laboratory at 6:52 a.m. ET. German astronaut Alexander Gerst used the space station's robotic arm to grab the capsule with help from NASA astronaut Reid Wiseman. The spacecraft is packed with 5,000 pounds (2,268 kilograms) of experiments and supplies.
"This was a great flight of Dragon toward the space station," Gerst radioed Mission Control after capturing the Dragon capsule with the robotic arm. [See photos from the SpaceX-4 Dragon mission]