Resembling a huge paw print, the Cat's paw Nebula is a star-formation region, with stars of close to 10 solar masses produced there in the past several million years.

猫掌星云看起来就像一个巨大的爪印，它是恒星形成区域，近几百万年间在猫掌星云里诞生的恒星具有近10个太阳的质量。

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Located about 5,000 light years from Earth, this composite image shows the Rosette star formation region.

这幅图像显示了距地球5000光年的罗赛塔星云的恒星诞生区域。

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This penetrating view of the central region of the Eagle Nebula from Nasa's Chandra X-ray observatory reveals the incredible amount of star formation inside the iconic 'Pillars of Creation'.

这张有点透视效果的图是从美国宇航局的钱德拉X射线天文台获得的鹰状星云的中心地区，它揭示出传说中的“创作之柱”里包含着数量惊人的恒星。

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Astronomers think the cosmic bullets were ejected from deep within the nebula, likely propelled by strong winds expelling gas at supersonic speeds from a region of massive star formation outside, and below, this image's field-of-view.

MSN: Cosmic 'bullets' slam Orion nebula in dazzling photo