NOVAفصل 47 جایگزینی تصویرشماره قسمت14Touching the AsteroidOverviewIf spacecraft OSIRIS-REx can grab a piece of an asteroid and bring it back to Earth, scientists could gain great insight into our planet's origins, and even how to defend against rogue asteroids. But NASA only gets three shots at collecting a sample.Air dateOctober 21, 2020Runtime (min)55
