Video: NASA tests World Cup ball

Greece's goalkeeper Panagiotis Glykos (bottom R) looks at the ball after failing to save a goal by Ivory Coast's Wilfried Bony (not seen) during their 2014 World Cup Group C soccer match at the Castelao arena in Fortaleza June 24, 2014. REUTERS/Eddie Keogh (BRAZIL - Tags: SOCCER SPORT WORLD CUP)

Greece's goalkeeper Panagiotis Glykos (bottom R) looks at the ball after failing to save a goal by Ivory Coast's Wilfried Bony (not seen) during their 2014 World Cup Group C soccer match at the Castelao arena in Fortaleza June 24, 2014. REUTERS/Eddie Keogh (BRAZIL - Tags: SOCCER SPORT WORLD CUP)

Published Jun 25, 2014