VANDENBERG AIR FORCE BASE : In this photo provided by NASA, the SpaceX Falcon 9 rocket carrying the NASA/German Research Centre for Geosciences GRACE Follow-On spacecraft lifts off from Vandenberg Air Force Base in California on Tuesday, May 22, 2018. The mission will measure changes in how mass is redistributed within and among Earth’s atmosphere, oceans, land and ice sheets, as well as within Earth itself. GRACE-FO is sharing its ride to orbit with five Iridium NEXT communications satellites as part of a commercial ride-share agreement. (AP/PTI)
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