gre阅读是许多考生难以攻克的大山，下面先来看看GRE阅读高频机经原文：蓝脱序星的两种形成过程，一起来学习吧！
GRE阅读高频机经原文：蓝脱序星的两种形成过程
蓝脱序星blue straggler的两种形成过程
Vampires and collisions rejuvenate stars
Using the NASA/ESA Hubble Space Telescope, astronomers have uncovered two distinct kinds of "rejuvenated" stars in the globular cluster Messier 30. A new study shows that both stellar collisions and a process sometimes called vampirism are behind this cosmic "face lift". The scientists also uncover evidence that both sorts of blue stragglers were produced during a critical dynamical event (known as "core collapse") that occurred in Messier 30 a few billion years ago.
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