Live coverage: 400th Proton rocket takes off with Russian satellite

An ambitious mission of exploration launched from Japan at 0422 GMT Wednesday (11:22 p.m. EST Tuesday). An H-2A rocket lifted off from the Tanegashima Space Center with Hayabusa 2, starting a six-year journey to collect rocks from an asteroid and return them to Earth.

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).

A Russian Soyuz rocket rolled to its launch pad in Kazakhstan early Monday aboard a specially-designed rail car, three days before sending a Russian cosmonaut and U.S. astronaut to the International Space Station.