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Award-winning journalist Tim Harford explains what it means when you hear that a COVID vaccine is 95% effective. Then, learn about Sentinel Island, home to the last uncontacted people on Earth; and what we can learn about our solar system\\u2019s theoretical \\u201cPlanet Nine\\u201d from the newly discovered planet HD 106906 b.
Additional resources from Tim Harford:
North Sentinel Island Is Home to the Last Uncontacted People on Earth by Reuben Westmaas
Scientists discovered a solar system with its own version of the theoretical "Planet Nine" by Grant Currin
Subscribe to Curiosity Daily to learn something new every day with Cody Gough and Ashley Hamer. You can also listen to our podcast as part of your Alexa Flash Briefing; Amazon smart speakers users, click/tap \\u201cenable\\u201d here: https://www.amazon.com/Curiosity-com-Curiosity-Daily-from/dp/B07CP17DJY
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Find episode transcript here: https://curiosity-daily-4e53644e.simplecast.com/episodes/what-a-95-effective-vaccine-actually-means
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