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How can deserts form next to oceans?Deserts are notoriously dry, so why do so many of them border oceans?
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What is rigor mortis, and why does it happen?Bodies usually stiffen after death in a process known as rigor mortis. But why does this happen, and how long does it last?
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How long do most planets last?Planets are born, and they can also "die." So what's the lifespan of a typical planet?
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What are ghost lineages, remnants of the past that still exist in our DNA today?Ghost lineages reveal themselves through ancient genes that still exist in living beings today.
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Did ancient Greeks let women compete in the Olympics?The ancient Olympic games were crowded with male athletes, but were there opportunities for females to compete in sports?
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Why do kids eat their boogers?There may be something more than just a bad habit behind this behavior.
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When were boats invented?The oldest physical boat is a canoe from roughly 10,000 years ago, but evidence suggests humans have been using watercraft for at least 50,000 years.
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How long does it take the sun to rotate?The time it takes for the sun to completely rotate depends where on the sun you are measuring.
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Why does the moon look larger when it's on the horizon?The moon looks enormous when it's near the horizon — why is that?
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