WASHINGTON — The Japan Aerospace Exploration Agency and prime contractor Mitsubishi Heavy Industries Corp. have rescheduled the launch of a cargo resupply mission to the International Space Station aboard an H-2B rocket for Aug. 19 after bad weather at the country’s Tanegashima Space Center forced the postponement of attempts Aug. 16 and Aug. 17, JAXA said.

The upcoming launch attempt of the H-2 Transfer Vehicle-5, or HTV-5, carrying 4.5 tons of station-bound cargo, will take place at about 8:50 p.m. local time, JAXA said. However, the agency warned that the Aug. 19 attempt also could be postponed due to weather at the southern Japan launch site.

Warren Ferster is the Editor-in-Chief of SpaceNews and is responsible for all the news and editorial coverage in the weekly newspaper, the spacenews.com Web site and variety of specialty publications such as show dailies. He manages a staff of seven reporters...