The true science behind our most popular urban legends. Historical mysteries, paranormal claims, popular science myths, aliens and UFO reports, conspiracy theories, and worthless alternative medicine schemes... Skeptoid has you covered. From the sublime to the startling, no topic is sacred. Weekly since 2006.
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Skeptoid #452: The Stone Spheres of Costa Rica
Southwestern Costa Rica is home to over 300 carved stone spheres left behind by the country's previous inhabitants. There are some fantastical claims surrounding their origin and purpose, but what can science tell us about their true nature?