Explore how half of Earth’s water originated from the planet’s inception and how the other half was deposited by comets.
➡ Subscribe: http://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: http://bit.ly/NatGeoOfficialSite
Facebook: http://bit.ly/FBNatGeo
Twitter: http://bit.ly/NatGeoTwitter
Instagram: http://bit.ly/NatGeoInsta
Earth the Biography: Oceans : http://channel.nationalgeographic.com/index.html
Earth the Biography: Oceans | National Geographic
National Geographic
https://www.youtube.com/natgeo
