Bill Nelson and Al Gore greet Jimmy Buffett prior to the liftoff of NOAA's Deep Space Climate Observatory mission.

Sen. Bill Nelson, left, and former Vice President Al Gore greet singer Jimmy Buffett, right, at NASA’s Kennedy Space Center in Florida prior to the planned liftoff of NOAA’s Deep Space Climate Observatory mission, or DSCOVR. DSCOVR will launch aboard a SpaceX Falcon 9 rocket. The mission is a partnership between NOAA, NASA and the U.S. Air Force. DSCOVR will maintain the nation's real-time solar wind monitoring capabilities which are critical to the accuracy and lead time of NOAA's space weather alerts and forecasts. To learn more about DSCOVR, visit http://www.nesdis.noaa.gov/DSCOVR. Photo credit: NASA/Kim Shiflett