US Rocket to Space Station Explodes on Launch

Rachel Kraft, NASA spokewoman, Frank Culbertson, Executive Vice President and General Manager of Advanced Programs Group at Orbital Sciences Corp., and Bill Wrobel, director of NASA's Wallops Flight Facility, speak at a news conference in this still image from NASA TV at Wallops Flight Facility, Virginia, Oct. 28, 2014.

This image taken from video provided by NASA TV shows Orbital Sciences Corp.'s unmanned rocket blowing up over the launch complex at Wallops Island, Va., just six seconds after liftoff. The company says no one was believed to be hurt and the damage appeared to be limited to the facilities, Oct. 28, 2014.

An unmanned Antares rocket is seen exploding seconds after lift off from a commercial launch pad in this still image from NASA video at Wallops Island, Virginia, Oct. 28, 2014.

Orbital Sciences Corporation's Antares rocket and Cygnus cargo spacecraft are prepared for launch at the Mid-Atlantic Regional Spaceport on Wallops Island, Virginia in this NASA handout picture released Oct. 27, 2014.

The Orbital Sciences Corporation Antares rocket, with the Cygnus spacecraft onboard, is seen on launch Pad-0A during sunrise, at NASA Wallops Flight Facility in Virginia, Oct. 26, 2014.

In this Oct. 24, 2014 handout photo provided by NASA, the Orbital Sciences Corporation Antares rocket, with the Cygnus spacecraft onboard, arrives at launch Pad-0A at NASA Wallops Flight Facility in Virginia.