Video: Vice President Al Gore attends DSCOVR launch

The SpaceX Falcon 9 launch countdown with the Deep Space Climate Observatory is halted due to a problem at T-minus 2 minutes, 26 seconds.

Unfavorable high-altitude winds force officials to halt the countdown to launch the SpaceX Falcon 9 rocket with the Deep Space Climate Observatory on Feb. 10.

A rocket recovery team positioned off Florida’s East Coast is standing by for liftoff Sunday of a Falcon 9 launcher with a space weather satellite, but the demanding trajectory of the flight adds more unknowns to the company’s dicey endeavor to land the booster on a ship at sea.