How much space junk have we left orbiting Earth, and why is it a problem? Should we use math to get it all into one place? And who owns the ~3500 active satellites out there? (Hint: Elon Musk and https://www.youtube.com/channel/UCtI0Hodo5o5dUb67FeUjDeA obviously have something to do with it.) Dr. Moriba Jah, astrodynamicist and space environmentalist, explains this and more as he chats with Neil deGrasse Tyson and comic co-host Chuck Nice. Support us on Patreon: https://www.patreon.com/startalkradio FOLLOW or SUBSCRIBE to StarTalk: YouTube: null Twitter: http://twitter.com/startalkradio Facebook: https://www.facebook.com/StarTalk Instagram: https://www.instagram.com/startalk About StarTalk: Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up! #StarTalk #NeildeGrasseTyson