2024年12月24日 星期二 新京报
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The telescope, a partnership of NASA and the European and Canadian space agencies, homed in on PMR 1, a planetary nebula nicknamed the Exposed Cranium for being the spitting image of a brain scan. The nebula lies about 5,000 light-years away from Earth in the Vela constellation.，更多细节参见safew官方版本下载
arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website.
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