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player sustains an impact at the threshhomed, they can be -- threshold, they can be removed and evaluated from data. >> i can't wait to see it when i'm hit in the head, what it looks like later. >> the players will be baseline tested and given a post test at the end of the season. >> if we can minimise the impacts, we have an improved chance of improving quality of lie longer term. >> in 15 years, if i have kids, i want to figure out what sports do i want my kids to play. >> i hope the findings they get may save someone's life or put someone in a situation once their career is over, to have a life after whatever sport they play. if we do that, we have accomplished our mission. >> scientists found a way to put a 360 degree view of the galaxy at your finger stips. science and technology correspondent jacob ward explains how. >> between 1990 and 2003 n.a.s.a. launched four satellites to photograph our galaxy across the visible and invisible life. they made up the great observatory program. the hubble telescope saw visible light, the way we do. com tonne saw high energy gam am rays.
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