NASA scrubs Orion launch; will try again Friday

NASA's Orion spacecraft, atop a United Launch Alliance Delta 4-Heavy rocket, sits on the launch pad before its first scheduled unmanned orbital test flight from the Cape Canaveral Air Force Station, Thursday, Dec. 4, 2014, in Cape Canaveral, Fla. - photo by Associated Press

APTOPIX NASA Orion Te Werm — NASA's Orion spacecraft, atop a United Launch Alliance Delta 4-Heavy rocket, sits on the launch pad before its first scheduled unmanned orbital test flight from the Cape Canaveral Air Force Station, Thursday, Dec. 4, 2014, in Cape Canaveral, Fla. - photo by Associated Press

CAPE CANAVERAL, Fla. — Wind gusts and sticky fuel valves conspired to keep NASA's new Orion spacecraft on the launch pad Thursday, delaying a crucial test flight meant to revitalize human exploration. NASA promised to try again Friday morning. The space agency's new countdown clock got a workout as problem after problem cropped up in the final four minutes, and the count switched back and forth.

Associated Press

Associated Press