Why People Thought "Aliens" Made These Rocks

By SciShow

Community Score: 50% | 11.8K views | 1w

0 community ratings: null thumbs up, null thumbs down

Every so often, humans stumble across stones that are so bizarre and out of place that they seem like they were put there by something sentient. Are the Martian blueberries signs of life on Mars? Were the Klerksdorp spheres left by aliens? And what the heck are fairy stones?Let's look at three of the strangest rock types out there, what we thought they were, and what they really tell us about our planet's actual geology. Hosted by: Hank Green (he/him) ---------- Support us for $8/month on Patreon and keep SciShow going! https://www.patreon.com/scishow Or support us directly: https://complexly.com/support Join our SciShow email list to get the latest news and highlights: https://mailchi.mp/scishow/email ---------- Huge thanks go to the following Patreon supporters for helping us keep SciShow free for everyone forever: Shaji John, Timos Gies, Jon Coffman, Anita, Anne Herrington, Ashley Moquin, yeyette, David Johnston, Cye Stoner, Jp Lynch, Bethany Matthews, Chris Curry, J.V. Rosenbal

Tags: SciShow, science, Hank, Green, education, learn, complexly, hank green, Why People Thought "Aliens" Made These Rocks, Klerksdorp, klerksdorp spheres, Klerksdorp sphere documentary

More from SciShow

  • How Decision Making is Actually Science: Game Theory Explained — Score: 50%
  • 6 Times Scientists Were Wrong About the Periodic Table — Score: 50%
  • There’s Fresh Water Under the Ocean. Can You Drink It? — Score: 50%
  • The Evolutionary Basis of Autism — Score: 50%
  • We Were Totally Wrong About How This Mineral Formed — Score: 50%
  • Why Humans Only Need To Vaccinate A Few Bats — Score: 50%