Entry for Challenge 12 of #SciFriday Friday 13th March through Friday 27th March Topic is "space debris" and this link was provided: http://www.aerospace.org/cords/ These sources were used for additional reference: http://www.permanent.com/asteroids-impact-earth-neo.html https://youtu.be/jSKL9BBEZ0w https://youtu.be/tN_CvGJKMOs