Matter & Energy

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Illustration of a cat with skeleton shadow

CAT CLUES  Schrödinger’s mythical cat is alive and dead at the same time. Scientists have wrangled microwaves into similarly bizarre quantum states, and now they are taking the experiment a step further, splitting one catlike state into two boxes.

cloud chamber

CLOUD MACHINE  Researchers created climate-cooling, cloud-seeding aerosols inside a cloud chamber without the sulfuric acid spewed by fossil fuel burning.

illustration of a clock and earth

YOUNG AT HEART  A clock placed at the Earth’s center would run slower than one on your nightstand. That means Earth’s core is 2.5 years younger than its surface, new calculations suggest.

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