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Is death the final frontier? We ask scientists, philosophers, and spiritual leaders about life after death.
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For several weeks after considering the ethics of eating meat, participants in an experiment changed their eating habits.
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Map shows oldest buildings for each U.S. state – but also hints at what's missing
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From 260-year-old ciphers to the most recent Zodiac Killer solution, these unbreakable codes just needed time.
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As the virus has spread, we have seen how none of us are immune, and how we need to work together to build and deploy solutions such as treatments and vaccines.
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Neuroscientists and ethicists wants to ensure that neurotechnologies remain benevolent.
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If this use of chess to represent life feels familiar, it is largely thanks to the medieval world.
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There is a neurological link between serotonin levels and the brain's ability to control impulses and patience levels.
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The rush to clean up outer space has begun.