Where Are the Oldest Rocks On Earth?

The first 500 people to use my link in the description will receive a one month free trial of Skillshare: https://skl.sh/itsokaytobesmart03251 ↓↓↓ More info and sources below ↓↓↓ The oldest rocks on Earth are more than just ancient—they’re time machines, holding clues to Earth’s missing history and revealing what happened in the unknown times after the Big Bang. We’ll work with our Adam and Joss from Howtown to learn more and visit our friends at The Smithsonian to examine some of these beyond-ancient rocks ourselves. Thank you to geochronologists Mike Ackerson and Jesse Reimink for helpful background discussions Thank you to ‪@Howtown‬ Go check out our collab over on their channel! 0:00 Holding the oldest rocks ever 0:56 The geologic calendar 3:06 Zircon - the Time Lord 4:58 The Oldest Thing on Earth 5:54 Where to find very very very old rocks 9:03 Gneiss guys finish first 10:50 How do we know how old these rocks are? 13:50 A new picture of the early Earth 16:30 Follow me to Howtown! ----------- High fives to all our Brain Trust Patrons: Olivia Ruiz Mike and Patty Loftis Ed Eyden Jennifer Burton Holly, Brett, and Ashe Bullion Jaap Westera Barbora Bei dani bowman David Johnston Baerbel Winkler Eric Meer Karen Haskell SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub Join us on Patreon!   / itsokaytobesmart   Instagram   / drjoehanson     / okaytobesmart   Facebook   / itsokaytobesmartpbs