Video: Delta 4 launch highlights

The nearly $1.9 billion BepiColombo mission to Mercury jointly developed by the European Space Agency and the Japan Aerospace Exploration Agency lifted off Friday night from French Guiana aboard an Ariane 5 rocket. Launch occurred at 9:45 p.m. EDT Friday (0145 GMT Saturday).

United Launch Alliance and SpaceX recently won contracts worth $739 million to send six missions into orbit for the U.S. military, and the Air Force has announced a new title for its flagship launcher program, dropping “expendable” from the name in a new era of reusable rockets.

Engineers believe super-hot gas from burning solid propellant impinged on the structure of the second stage on a European Vega launcher during a failed flight in July, causing the vehicle to break apart minutes after liftoff from French Guiana with a reconnaissance satellite for the United Arab Emirates, the CEO of Italian rocket-maker Avio said Monday.