Video: Antares rocket explodes

An Antares rocket carrying the Cygnus cargo ship has exploded moments after lift off from Wallops Island, Virginia.

No one had ever lost 26 satellites at once until a launch failure bit Planet Labs last year, temporarily setting back the San Francisco startup’s ambition to map the globe every day.

Ground crews transferred an Antares rocket out of an assembly building to a launch pad on Virginia’s Eastern Shore in a major step before liftoff on Orbital Sciences’ third flight to resupply the International Space Station.