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How many generations of humans have there been?Life's Little Mysteries Modern humans have been around 300,000 years. How many generations is that?
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What is jetlag, and how can you avoid it?Long-haul travelers often feel totally out of whack for several days after arriving at their destination. Jet lag is a natural phenomenon, but can it be prevented?
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War has brought Iran's water crisis to a breaking point: 'Things will collapse unless there is meaningful structural change'Science spotlight Iran is experiencing "water bankruptcy" that stems from decades of broken water governance and aggressive policies, and the current war is exacerbating the crisis.
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Fingal's Cave: Scotland's 'cave of melody' where eerie echoes bounce off pillars of solidified lavaFingal's Cave is a hollow inside the Scottish island of Staffa that is characterized by massive, interlocking hexagonal columns of volcanic rock and astonishing acoustics.
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Whiplike rashes appeared on a woman's back after she ate shiitake mushroomsDiagnostic dilemma A woman developed bright-red rashes on her back that looked like marks from a whip, and at first, it wasn't clear what caused them.
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Gold glitters around Ghana's 'lake of souls' thanks to catastrophic meteor strikeEarth from space A 2015 satellite photo shows a series of golden tendrils surrounding Ghana's Lake Bosumtwi, which is considered sacred to the local Asante people. The lake and its surroundings were shaped by a massive meteor impact around 1 million years ago.
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Bead net funerary shroud: A 2,500-year-old beaded veil from Egypt depicting the deceased's transformation into OsirisAstonishing Artifacts This funerary shroud was made from thousands of multicolored beads and woven to represent a human face and a large scarab beetle.
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Mars looks blue and bruised in surreal new images from Psyche spacecraft — Space photo of the weekOn its way to a metal asteroid, NASA's Psyche probe tested its cameras as it got a gravity assist from the Red Planet.
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How did animals survive the asteroid that killed the dinosaurs?Life's Little Mysteries It helped to have a number of features to aid survival following the end-Cretaceous mass extinction.
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