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File:Holmberg II galaxy.jpg

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原始文件 （3,682 × 3,696像素，文件大小：11.18 MB，MIME类型：image/jpeg）

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English: The NASA/ESA Hubble Space Telescope has captured this image of dwarf irregular galaxy Holmberg II. The galaxy is dominated by huge bubbles of glowing gas, which are sites of ongoing star formation. As high-mass stars form in dense regions of gas and dust they expel strong stellar winds that blow away the surrounding material. The cavities are also blown clear of gas by the shock waves produced in supernovae, the violent explosions that mark the end of the lives of massive stars.
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来源 http://www.spacetelescope.org/images/heic1114a/
作者 NASA & ESA
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本图像是 File: Irregular galaxy Holmberg II (captured by the Hubble Space Telescope).tif 中原始图像 TIFF 的 JPEG 版本。

显示来自维基共享资源中的该文件时应使用其 JPEG 版本，由于 MediaWiki 软件无法创建原始 TIFF 文件的缩略图或预览，因为它会超过 1000 百万像素。 不过，编辑时应使用原始 TIFF 版本以避免叠代丢失，且需同时更新两种版本。请勿编辑本版本。

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