How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system’s genesis, plus its planets, moons, and asteroids. ➡ Subscribe: bit.ly/NatGeoSubscribe About National Geographic: National Geographic is the world's premium destination for science, exploration, and adventure. Through their world-class scientists, photographers, journalists, and filmmakers, Nat Geo gets you closer to the stories that matter and past the edge of what's possible. Get More National Geographic: Official Site: bit.ly/NatGeoOfficialSite Facebook: bit.ly/FBNatGeo Twitter: bit.ly/NatGeoTwitter Instagram: bit.ly/NatGeoInsta Solar System 101 | National Geographic youtu.be/libKVRa01L8 National Geographic www.youtube.com/natgeo