标签: merger

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NGC 3521:气泡里的星系

2022年5月5日 NGC 3521: Galaxy in a Bubble Image Credit & Copyright: Mark Hanson and Mike Selby Explanation: Gorgeous spiral galaxy NGC 3521 is a mere 35 million light-years away, toward the northern springtime constellation Leo. Relatively bright in planet Earth’s sky, NGC 3521 is easily visible in small telescopes but often overlooked by amateur ima...

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当黑洞互撞

2021年04月11日 When Black Holes Collide Video Credit & Copyright: Simulating Extreme Spacetimes Collaboration Explanation: What happens when two black holes collide? This extreme scenario occurs in the centers of many merging galaxies and multiple star systems. The featured video shows a computer animation of the final stages of such a merger, while highli...

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星系NGC 1947的线状物

2021年04月07日 Threads of NGC 1947 Image Credit: ESA/Hubble & NASA, D. Rosario; Acknowledgment: L. Shatz Explanation: Found in far southern skies, deep within the boundaries of the constellation Dorado, NGC 1947 is some 40 million light-years away. In silhouette against starlight, obscuring lanes of cosmic dust thread across the peculiar galaxy’s bri...

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NGC 3521:气泡里的星系

2021年04月02日 NGC 3521: Galaxy in a Bubble Image Credit & Copyright: Acquisition – Eric Benson, Processing – Dietmar Hager Explanation: Gorgeous spiral galaxy NGC 3521 is a mere 35 million light-years away, toward the constellation Leo. Relatively bright in planet Earth’s sky, NGC 3521 is easily visible in small telescopes but often over...