You are walking past a town hall, courthouse, school or government building when something looks slightly wrong: the flag is not at the top of its pole. It is hanging lower, leaving an unmistakable space above it. For many people, the next...
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In 1997, IBM's Deep Blue defeated world chess champion Garry Kasparov in a match. The achievement looked like a milestone on the road to machine intelligence: a computer had conquered a game...
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Dig beneath a forest and the roots are not alone. Wrapped around them, penetrating them and extending far beyond them are microscopic fungal threads called hyphae. Together those threads for...
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A black hole does something stranger than simply swallowing light. Before a photon crosses the point of no return, spacetime can bend its trajectory so violently that the light can travel ar...
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Every email address contains a tiny piece of computing history. Between a person's name and the domain sits a character that most of us type without thinking: @.It seems inevitable now. We r...
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Open the Voynich Manuscript and almost everything about it looks tantalizingly close to comprehension. Lines of neat handwriting run from left to right. Words are separated by spaces. Paragr...
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On the morning of November 14, 1963, sailors south of Iceland saw something that looked at first like a ship on fire. A dark column was rising from the North Atlantic. It was not smoke from...
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A sleeping octopus can look almost ghostly. Its body lies still, its eyes close and its skin may fade toward a pale, uniform color. Then, without waking, the animal seems to erupt into activ...
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Few words sound more futuristic than “robot.” It belongs to Mars rovers, factory arms, humanoid machines and today's arguments about artificial intelligence. Yet the word did not originate i...
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You open a social-media app to check one headline. A war update leads to a natural disaster, which leads to political outrage, an economic warning and a frightening health story. Twenty minu...
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