Astronomy

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pair of supermassive black holes

BOSOM BUDDIES  A pair of supermassive black holes might live in the heart of the galaxy Markarian 231, shown in this Hubble Space Telescope image. 

photo illustration of satellite galaxies

Seventeen dwarf galaxies (some marked above with red dots) have been found around the Milky Way this year, including eight recently announced. These satellites are often too faint for images, so astronomers use maps of star density (inset) instead.

screenshot from NameExoWorlds

VOTE EARLY, VOTE OFTEN  Mnesileüs and Kashani are just two possible names for beta Geminorum b (left). Epsilon Eridani b (right) could be renamed Stafar31 or Sufijunior. Both worlds are illustrated in a screenshot from NameExoWorlds.

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