BrainStuff
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Was Earth's Oldest Rock Found on the Moon?

February 15, 20196 min
The oldest known intact Earth rock was collected on the moon in the 1970s. Learn how researchers think it got there it in this episode of BrainStuff.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices