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How does gas in accretion disks of supermassive black holes create orbital torques on smaller black holes within the disks causing them to migrate?

black-hole astrophysics supermassive-black-hole accretion-discs gas

Aug 8 at 14:39 planetmaker 5,231

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When was the concept of rogue planets first theorized?

planet exoplanet rogue-planet

Jul 5 at 21:35 M. A. Golding 1,778

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How was the Earth-Sun distance originally calculated?

distances history

Jun 25 at 8:47 peterh - Reinstate Monica 2,771

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Is Io's orbit or rotation affected by its volcanism?

celestial-mechanics volcanism

Jun 10 '18 at 18:05 Community♦ 1

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Do star remnants actually burn?

star

Mar 3 '16 at 18:04 James K 64.3k

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What is the reason for the dispute over the variation of core mass with heavy metal abundance?

star metal

May 25 '15 at 22:36 HDE 226868♦ 29.5k

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