Live coverage: Cygnus supply ship arrives at space station

A Japanese H-2A rocket launched from Tanegashima Island on Wednesday with the Himawari 9 weather observatory bound for a perch more than 22,000 miles above Earth to improve forecasting in the Asia-Pacific. Liftoff of the 17-story rocket from southern Japan occurred at 0620 GMT (2:20 a.m. EDT) Wednesday.

A Russian Progress supply ship packed with 3.1 tons of cargo and propellant to refuel the International Space Station is set for liftoff Tuesday from the Baikonur Cosmodrome in Kazakhstan.

Tyvak, a manufacturer of small satellites, disclosed new details Monday about an experimental spacecraft launched aboard a SpaceX Falcon 9 rocket Saturday, revealing plans to validate compact optical telescopes that could offer a new way to monitor space traffic and orbital debris.