The galaxy's brightest, hottest, heaviest stars turn out to be crucial for both planets and biology.
星系中那些最耀眼，最炙热，最重的恒星对于行星和生物来说也最关键。
If they turn out to be stars, then the clusters might be the first mini-galaxies.
如果这些物体真的是恒星的话，那么这个物体群可能就是第一个微型星系。
Gravity, however, causes density waves to move out through the galaxy which in turn triggers the formation of hot, bright young stars, producing the ring that we see in this picture.
引力会使密度波穿透星系，继而形成炽热、耀眼的年轻恒星，产生我们在图片中看到的光环。
Discovery of the record-setting stars were first announced last year. The new measurements are rough, and the stars might turn out to be considerably heavier or lighter.
去年，天文学家们最初宣布发现了这些创纪录的恒星。这些新测量法只是测出一个大概，实际上这些恒星可能要重得多或者轻得多。
Discovery of the record-setting stars were first announced last year. The new measurements are rough, and the stars might turn out to be considerably heavier or lighter.
去年，天文学家们最初宣布发现了这些创纪录的恒星。这些新测量法只是测出一个大概，实际上这些恒星可能要重得多或者轻得多。
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