EXPLICIT MATERIAL Updates on the Philae mission CORRECTION FROM LAST WEEK: Pronunciation of the "ORION"   Some information on why the harpoons may not have released   What is "Flight Heritage"   Asteroids Some research shows we're getting hit with more asteroids than we thought Some facts about asteroids How many people have been killed by them? What are they made of? Where do most of the asteroids we know of come from? Alex then goes over different ways we could "defend" ourselves from asteroids - Info on the upcoming launches Orion (12/4/14) and SpaceX CRS-5 (12/16/14) Space links: Philae Harpoon Failure - Suspect Fuel http://txchnologist.com/post/102624788755/philae-harpoon-failure-suspect-propellant-that Asteroids may be more numerous than previously thought, scientists sayhttp://www.washingtonpost.com/national/health-science/hazardous-asteroids-may-be-more-numerous-than-previously-thought-scientists-say/2013/11/06/c022a022-46f2-11e3-bf0c-cebf37c6f484_story.html SpaceX Rocket Tank Production | Timelapse https://www.youtube.com/watch?v=vrR31nHCV-U&feature=youtu.be