An unmanned cargo spacecraft with food, fuel and supplies docked at the International Space Station (ISS) on Saturday.Russian Progress 75 cargo ship left the Baikonur Cosmodrom in Kazakhstan, a few minutes before 1 a.m. GMT and transported almost 3 tons of food and other supplies to the ISS.Scientists and staff, both in Baikonur and at Johnson Space Center in Houston, Texas, monitored the three-hour journey and the docking.The cargo ship is set to remain at the station until December, when it will leave and burn up in Earth’s atmosphere.