World’s Most Asked Questions: How Old is Earth?

People ask Google everything under the sun. One of the most commonly searched questions in the world is “How old is Earth?” SciShow has the answer!

If you have any burning questions, ask them with the hashtag #WMAQ and we'll answer our favorites in a video November 6!

Watch more of the World’s Most Asked Questions here: https://www.youtube.com/playlist?list=PLsNB4peY6C6L1A74436Ccy3pvDhb33fhi

And don’t forget to subscribe to http://youtube.com/scishow

Hosted by: Caitlin Hofmeister
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Sources:
http://www.space.com/24854-how-old-is-earth.html
http://www.smithsonianmag.com/smart-news/how-do-we-know-earth-46-billion-years-old-180951483/?no-ist
http://www.smithsonianmag.com/smart-news/little-gem-oldest-piece-earth-weve-ever-found-180949869/
http://pubs.usgs.gov/gip/geotime/age.html
http://www.tulane.edu/~sanelson/eens211/radiometric_dating.htm
http://www.universetoday.com/75805/how-old-is-the-earth/