How NASA is studying the ‘Halloween asteroid’ using radar

JPL scientist Marina Brozovic explains how radar will be used to study asteroid 2015 TB145 when it safely passed Earth on Oct. 31, 2015. The asteroids orbit causes it to pass earth every year in the fall.
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JPL scientist Marina Brozovic explains how radar will be used to study asteroid 2015 TB145 when it safely passed Earth on Oct. 31, 2015. The asteroids orbit causes it to pass earth every year in the fall.