科学与环境
Milky Way's disk grew 'upside down,' with younger stars forming in ever-thinner layers
来源: Phys.org - latest science and technology news stories · 发布于
The Milky Way is home to hundreds of billions of stars arranged in a glorious spiral pattern. But beyond the obvious spiral, our galaxy has other physical characteristics. It's divided into a galactic bulge, a galactic disk and a galactic halo.
The Milky Way is home to hundreds of billions of stars arranged in a glorious spiral pattern. But beyond the obvious spiral, our galaxy has other physical characteristics. It's divided into a galactic bulge, a galactic disk and a galactic halo.
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