Imagine taking the mass of a mountain and compressing it until its boundary is smaller than an atom. There would be no miniature rocky mountain inside, no visible sphere and certainly nothing resembling the familiar illustrations of glowing...
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Few wildlife events are as disturbing as a whale stranding. An animal exquisitely adapted to life in deep water suddenly lies helpless on a beach, sometimes alone and sometimes alongside doz...
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Few sights make the Moon seem more theatrical than an early-autumn moonrise. A huge amber disk appears behind trees, rooftops or distant hills, looking far larger than the Moon we see later...
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The James Webb Space Telescope is often introduced through spectacular pictures: glowing stellar nurseries, delicate shells of gas, galaxies from the young universe and strange worlds orbiti...
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On a clear Arctic night, the sky can begin almost imperceptibly. A pale band appears above the horizon, faint enough to be mistaken for a cloud. Then it brightens. The band folds into curtai...
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The most spectacular sign of a geomagnetic storm can look almost supernatural. Green curtains ripple across the night sky, red light appears hundreds or even thousands of kilometres farther...
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Step out of a dark cinema into brilliant afternoon sunlight and, for some people, the reaction is immediate. The eyes narrow, the nose begins to tingle and within seconds comes an involuntar...
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Look up on a clear night and the most obvious feature of the universe is not the stars. It is the darkness between them. That darkness seems perfectly ordinary, yet for centuries it posed a...
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It is one of those questions that sounds almost too simple to deserve a scientific explanation. Look up on a clear afternoon and the sky is blue. Yet that familiar color is the visible resul...
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Near the heart of the Milky Way lies a cloud with a reputation that sounds invented for a science-fiction cocktail menu. Sagittarius B2 contains alcohol. It also contains ethyl formate, an o...
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