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《科学》 第392卷 第6793期 · 2026年4月2日 · 中文解读

宇宙幻象:引力透镜如何破解哈勃常数之争

Cosmic illusions · D. Clery
约 25 分钟Features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利用引力透镜效应观测重复出现的超新星,以测量哈勃常数,从而解决宇宙膨胀速率测量方法之间的争议。
原文开头
Stellar explosions seemingly replayed as gravity bends their light could resolve a dispute over the speed of the expanding universe DANIEL CLERY Sherry Suyu can’t wait for the Sun to get out of the way. Sometime after June, when Earth’s turn around the Sun brings a distant galaxy into view, she expects to see a giant star explode at the end of its life. Supernovae usually don’t send out invitations in advance. But this one, called SN Requiem, has already gone off three times before. Suyu, a cosmologist at the Max Planck Institute for Astrophysics, predicts it will detonate yet again—as if the star is refusing to stay dead. It’s an illusion. …
摘自《科学》(Science)第392卷 第6793期 · 2026年4月2日,D. Clery。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。
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