galaxies

The inner part of the massive Coma galaxy cluster, where thousands of galaxies swarm. Credit: NASA, ESA, J. Mack (STScI), and J. Madrid (Australian Telescope National Facility)
A cluster of clusters: The globulars of Coma
Phil Plait

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A distant black hole powers a colossal galactic fountain
Phil Plait
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Composite image of the galaxy cluster Abell 2597 showing X-rays from background hot gas (purple), radio waves from cold gas falling toward the center (yellow), and warm hydrogen gas (red).
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Beginnings
Phil Plait
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Distant galaxies pepper this deep infrared image of the sky, the first taken by Hubble after being reactivated after several weeks of being in safe mode due to a busted gyro. This image has been enlarged and slightly contrast-enhanced from original.
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Observing galaxy cluster collisions is quite the… enterprise
Phil Plait
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The colliding galaxy clusters Abell 1033. Optical light (red/green/blue) shows galaxies, X-rays (purple) super-hot gas, and radio (blue) much lower energy gas blown out from a galaxy.
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Tag: Milky Way
The Milky Way ate another galaxy, and we can still see the undigested bits
Phil Plait
Nov 6, 2018
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Artwork depicting the stars from Gaia-Enceladus (arrows indicate their velocity) merging with the Milky Way based on actual physical simulations.
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The Milky Way’s sibling spiral star system
Phil Plait
Oct 19, 2018
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The central region of the gorgeous spiral galaxy NGC 6744, imaged using the Hubble Space Telescope. Credit: NASA, ESA, and the LEGUS team
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A gigantic galactic city — still under construction — seen clear across the Universe
Phil Plait
Oct 18, 2018
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A visualization of the Hyperion proto-supercluster based on actual observations. Credit: ESO/L. Calçada & Olga Cucciati et al.
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Is this faint smear of a light a galaxy or the guts ripped out of a galaxy?
Phil Plait
Oct 4, 2018
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An image of the nearby Leo I galaxy group show several obvious galaxies, but also a faint smear of light (outlined) that may be a previously undiscovered galaxy. Credit: Mihos et al.
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WHAM! BULLSEYE! Galactic collision creates a ring of black holes and neutron stars
Phil Plait
Sep 10, 2018
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The ring galaxy AM 0644-071, created when a small compact galaxy plowed through the middle of a spiral galaxy at least tens of millions of years ago. Credit: NASA, ESA, and The Hubble Heritage Team (AURA/STScI)
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IC 4870, the mystery galaxy
Phil Plait
Sep 6, 2018
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The dwarf galaxy IC 4870 is lovely in this Hubble image, but more information about it is scarce. Credit: ESA/Hubble & NASA
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An elliptical galaxy… kinda
Phil Plait
Aug 28, 2018
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A wide field view of the galaxy NGC 5018 and neighbors. Credit: ESO/Spavone et al.
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Another Hubble stunner as it paves the way for JWST
Phil Plait
Aug 24, 2018
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The gigantic galaxy cluster RXC J0142.9+4438 contains several hundred galaxies, and was observed by Hubble to study even more distant background galaxies whose light was amplified by the gravity of the cluster. Credit: ESA/Hubble & NASA, RELICS
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Hubble goes deep and finds thousands of galaxies assembling when the Universe was young
Phil Plait
Aug 20, 2018
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A deep Hubble image in ultraviolet, visible, and infrared light shows thousands of galaxies in the early Universe. This is the northern field of the HDUV survey.
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Tag: Andromeda galaxy
Two billion years ago, Andromeda ate the Milky Way’s sibling
Phil Plait
Aug 17, 2018
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The magnificent Andromeda Galaxy along with its companion M32 (upper left of center). Credit: Local Group Survey Team and T.A. Rector (University of Alaska Anchorage)
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News: Monster black holes shoot out neutrinos like cosmic bullets
Phil Plait
Jul 12, 2018
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Artist drawing of a blazar, a galaxy with a supermassive black hole spewing out energy. Credit: DESY, Science Communication Lab
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Abell 370 and the vermin of the sky
Phil Plait
Jul 5, 2018
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Abell 370 provides a dramatic backdrop for quite a few asteroids, seen as curved tracks in this Hubble image. Credit: NASA, ESA, and B. Sunnquist and J. Mack (STScI) Acknowledgment: NASA, ESA, and J. Lotz (STScI) and the HFF Team
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