On April 17, 2015 at 13:29 UTC the private U.S. unmanned supply spacecraft, the Dragon (SpX CRS-6 flight), was successfully docked to the International Space Station. The linkup operation was carried out with the help of the giant 17-meter Canadarm. The capture with Canadarm-2 was performed by Italian astronaut Samantha Cristoforetti at 10:55 UTC. The Dragon spacecraft was maneuvered into position and attached to a berthing port on the space station's Harmony module. The unmanned spacecraft delivered about 2 tons of supplies for the space station crew and for experiments being conducted aboard the ISS. An animal habitat with 20 mice, 600,000 tomato speeds, plant and worm specimens and spare parts for the space station’s air revitalization system were also delivered by the Dragon.