The $20 Asteroid Tracker

Leading up to World Asteroid Day 2018 we take a look at the work that NASA are doing in aid of protecting our planet from life threatening asteroid impacts To find out more about Asteroid Day head to https://asteroidday.org/ #WorldAsteroidDay2018 Subscribe to us here: https://www.youtube.com/user/yourdisc... Like us at:   / yourdiscoveryscience