Photos: Ariane 5 rolls to launch pad

The launch from French Guiana of a solid-fueled Vega rocket with a European-built surveillance satellite for the United Arab Emirates has been postponed, Arianespace said, citing unfavorable high-altitude winds over the spaceport. Officials have not set a new target launch date.

This gallery of U.S. Air Force photos show technicians, wearing protective SCAPE suits, initially check for hazardous hypergolic fuel vapors around the X-37B spaceplane on the Shuttle Landing Facility runway and the subsequent tow of the vehicle to its newly-renovated hangar at the Kennedy Space Center.

Ground crews at the Guiana Space Center in South America have spent the last few months preparing the BepiColombo spacecraft, a tandem mission with European and Japanese science orbiters bound for Mercury, for launch aboard an Ariane 5 rocket.