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