Video: Time lapse of ATV’s final departure from ISS

Mitsubishi Heavy Industries, the prime contractor for Japan’s H-2B rocket, said Friday that engineers concluded a fire on the launch pad during a countdown earlier this month was most likely sparked by static electricity and stimulated by oxygen. The H-2B rocket launch has been rescheduled for Tuesday to start a resupply mission to the International Space Station.

Officials have delayed the launch of a United Launch Alliance Atlas 5 rocket with the European-built Solar Orbiter spacecraft from Cape Canaveral by two days to Feb. 7, a ripple effect from time spent fixing a minor issue last week during a launch vehicle countdown dress rehearsal.

A Northrop Grumman Antares rocket and Cygnus cargo carrier climbed into orbit Saturday from Wallops Island, Virginia, in pursuit of the International Space Station with more than 7,200 pounds of research hardware and provisions, the second supply ship launch to the space station in less than 24 hours.