An unmanned cargo ship blasted off from Kazakhstan today, en route to deliver supplies to the International Space Station. Progress 15 lifted off from the Baikonur Cosmodrome at 0503 UTC (1:03 am EDT), and safely reached orbit 10 minutes later. It’s carrying propellant, air, water, spare parts, life support components and equipment hardware. One special delivery is a set of new pumps for the US spacesuits on board the station that experienced cooling problems earlier this year. The crew used Russian-built spacesuits to make their latest spacewalks.