When NASA crashed a spacecraft into the asteroid moonlet Dimorphos in 2022, it altered both Dimorphos' orbit around its parent asteroid, Didymos, and the two objects' orbit around the sun, according to new research. NASA's Jet Propulsion Laboratory (JPL) said in a press release that this "marks the first time a human-made object has measurably altered the path of a celestial body around the Sun." It's a promising result as scientists work to find a feasible method of defending Earth from hazardous space objects.
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Трамп высказался о непростом решении по Ирану09:14，详情可参考safew
expires: Temporal.Now.instant().add({ hours: 24 }).epochMilliseconds,，详情可参考谷歌
杭州旗舰店二楼排队结账的消费者。（摄影：杨萱）
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