Earth is a huge planet full of incredible sights and amazing creatures! But have you ever wondered where the Earth came from in the first place? Well, by looking at other stars and planets, scientists think they have a pretty good idea! ---------- Love SciShow Kids and want to help support it? Become a patron on Patreon: https://www.patreon.com/scishowkids ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow SOURCES: http://hubblesite.org/hubble_discoveries/discovering_planets_beyond/how-do-planets-form http://www.bbc.co.uk/science/earth/earth_timeline/earth_formed