An unmanned Russian cargo ship launched into space Tuesday (June 21), carrying a fresh load of supplies and equipment for astronauts on the International Space Station.

The Progress 43 cargo ship blasted off at 10:38 a.m. EDT (1438 GMT) from the Baikonour Cosmodrome in Kazakhstan in Central Asia. The robot resupply vehicle will dock at the space station's Russian Zvezda service module on Thursday (June 23).

"There's a little less than 3 tons of supplies, equipment, fuel and oxygen," NASA spokesman Kelly Humphries told SPACE.com. "There's about 47 kilograms (104 pounds) of NASA, [European Space Agency] and [Canadian Space Agency] science supplies and equipment."