晨间信号Morning Signal
《科学美国人》 第334卷 第1期 · 2026年1月刊 · 中文解读

小行星家族:追溯太空岩石的起源

The Universe: Inside Asteroid Families · Phil Plait
约 10 分钟Columns在小程序里点播,20 到 60 分钟做好
这篇讲什么
本文介绍了天文学家如何通过轨道要素识别小行星家族,并利用它们来了解小行星的起源和潜在威胁。
原文开头
This illustration shows the creation of an asteroid family. Ejected fragments from catastrophic collisions of asteroids between Mars and Jupiter tend to follow similar orbits around the sun, allowing astronomers to trace their lineage. Inside Asteroid Family Trees Asteroid origins can be hard to trace BY PHIL PLAIT WE’VE ALL SEEN THIS HAPPEN in a science- fiction movie: our plucky heroes jump into their ramshackle spaceship and escape the bad guys by flying through the treacherous asteroid belt, where huge rocks tumble and spin so close together that the crew has to constantly dodge, duck, dip and dive to avoid being smashed to atoms. Luc Novovitch/Alamy Stock Photo Phil Plait is a professional astronomer and science communicator in Virginia. …
摘自《科学美国人》(Scientific American)第334卷 第1期 · 2026年1月刊,Phil Plait。仅引用开头一小段供了解文章,版权归原刊所有,全文请阅读原刊。
晨间信号小程序码
微信扫码,在小程序里听完整版
不用登录先听一篇 · 或在微信搜索小程序 晨间信号
同期其他文章