Light Can Travel Backward in Time (Sort Of)
Light can be reflected not only in space but also in time—and researchers exploring such “time reflections” are finding a wealth of delightfully odd and useful effects
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How Scientists Are Using AI to Talk to Animals
Portable sensors and artificial intelligence are helping researchers decode animal communication—and begin to talk back to nonhumans
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The Case for the Self-Driven Child
In a new book, an argument for giving children more of a sense of control over their lives
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An Ancient Greek Astronomical Calculation Machine Reveals New Secrets
Scientists have a new understanding of the mysterious Antikythera mechanism that challenges assumptions about ancient technology
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The ‘Shared Psychosis’ of Donald Trump and His Loyalists
Forensic psychiatrist Bandy X. Lee explains the outgoing president’s pathological appeal and how to wean people from it
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Mystery of Interstellar Visitor 'Oumuamua Gets Trickier
Aliens? Or a chunk of solid hydrogen? Which idea makes less sense?
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A New Theory of Obesity
“Ultraprocessed” foods seem to trigger neural signals that make us want more and more calories, unlike other foods in the Western diet
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The Case for the “Self-Driven Child”
In a new book, an argument for giving children more of a sense of control over their lives
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Redirecting
In a new book, an argument for giving children more of a sense of control over their lives
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The World Really Could Go Nuclear
Nothing but fear and capital stand in the way of a nuclear-powered future
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The Workings of an Ancient Nuclear Reactor (2009)
Two billion years ago parts of an African uranium deposit spontaneously underwent nuclear fission. The details of this remarkable phenomenon are just now becoming clear
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Israel Proves the Desalination Era is Here
One of the driest countries on earth now makes more freshwater than it needs
