（本报记者李亚楠、徐靖、胡婧怡参与采写）
But one cohort is en route to pocketing a never-before-seen windfall while taking virtually no risk: the Wall Street banks that shepherd the deal.
The survey targets the so-called Central Molecular Zone, which contains tens of millions of times the sun's mass in dense material, surrounding the supermassive black hole, Sagittarius A*. The region runs warmer and far more chaotic than most of the Milky Way's disk. By standard estimates, that much dense gas should produce stars at a steady pace. Instead, the region forms them about 10 times slower than predicted.。快连下载-Letsvpn下载对此有专业解读
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