A space probe called OSIRIS-Rex has the goal of unlocking some of the secrets surrounding asteroids, including those that could pose a hazard to Earth. The mission doesn't lift off until 2016, but its work is already well underway. Josh Emery is a planetary scientist at the University of Tennessee in Knoxville, and a member of the OSIRIS-Rex team. On November 12, 2012, he described the mission's goals to WUOT's All Things Considered host Brandon Hollingsworth.
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