The Oort Cloud: The Solar System's Shell

What lies at the edge of the Solar System? Far beyond the orbit of Neptune and the Kuiper Belt, deep into interstellar space, we find a vast, thick shell of icy space debris. We have never seen it directly, but we know it exists- because it is the source of the most distant comets that we see entering the Solar System. So why is it there? Today we'll find out.All background songs in this video were sourced from the royalty and attribution-free YouTube Audio Library. CHAPTERS:00:00: Introduction 02:01: The Oort Cloud 05:18: The Scale of the Cloud06:47: Formation of the Oort Cloud 09:33: The Source of All Comets13:17: The Hills Cloud14:40: Sedna16:12: The Outer Oort Cloud17:13: Siding Spring, Hale Bopp, Lovejoy19:20: Future Missions to the Oort Cloud 21:46: Extra-solar Oort Clouds