Video: Antares rocket explodes

Officials scrubbed the launch of an Antares rocket with fresh supplies for the International Space Station after a boat sailed into restricted waters off Virginia’s Eastern Shore, violating safety rules for a widely-anticipated launch that was expected to be visible to millions along the U.S. East Coast.

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.

An Orbital Sciences Antares rocket exploded seconds after launch from the Virginia coast Tuesday, erupting in a spectacular fireball and destroying the company’s third operational Cygnus cargo ship in a disheartening failure for NASA’s commercial space station resupply program.