A Japanese HTV cargo freighter is set for launch Tuesday (U.S. time) aboard a powerful H-2B rocket, ferrying six new lithium-ion batteries, a Sony-developed laser communications terminal, fresh water and other equipment to the International Space Station.

A European-built Ariane 5 rocket launched Tuesday with a U.S.-made communications satellite for Tokyo-based Sky Perfect JSAT and a South Korean environmental observatory. The heavy-lift Ariane 5 launcher took off from the Guiana Space Center in Kourou, French Guiana, at 5:18 p.m. EST (2218 GMT; 7:18 p.m. French Guiana time).

For the second time in less than 24 hours, a robotic resupply freighter departed Earth Friday for the International Space Station, this time aboard a Russian Soyuz booster launched from the Baikonur Cosmodrome in Kazakhstan.