Mountains In Space - New How The Universe Works
submitted by pkamweru
on 09/05/15
1
In the early Solar System asteroids crashed together to form larger rock piles, when their mass grew, so did their gravity, eventually producing a planet. For more info:- www.discoveryuk.com/web/how-the-universe-works/ Subscribe! www.youtube.com/subscription_center?add_user=DiscoveryTV Follow us on Twitter www.twitter.com/DiscoveryUK
