Brown dwarfs are balls of warm gas that lack the mass necessary to fuse hydrogen at their core, as stars can.

棕矮星是一些由炽热的气体组成的球，它们缺乏像行星那样足够的质量来进行氢的燃烧。

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The core-shell nanoparticle developed by researchers at Brown University and Oak Ridge National Laboratory addresses both of these problems.

该核壳纳米粒子的研究人员开发的布朗大学和橡树岭国家实验室这些问题都解决了。

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