(PhysOrg.com) -- Hubble's famous images of galaxies typically show elegant spirals or soft-edged ellipses. But these neat forms are only representative of large galaxies. Smaller galaxies like the dwarf irregular galaxy Holmberg ...
Astronomy
Sep 29, 2011
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(Phys.org) —NASA's Chandra X-ray Observatory has shed new light on the mystery of why giant elliptical galaxies have few, if any, young stars. This new evidence highlights the important role that supermassive black holes ...
Astronomy
May 30, 2014
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Many of the best-loved galaxies in the cosmos are remarkably large, close, massive, bright, or beautiful, often with an unusual or intriguing structure or history. However, it takes all kinds to make a universe—as demonstrated ...
Astronomy
Sep 23, 2019
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The dichotomy concerns the so-called angular momentum (per unit mass) that in physics is a measure of size and rotation velocity. Spiral galaxies are found to be strongly rotating, with an angular momentum higher by a factor ...
Astronomy
Jul 14, 2017
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Peering into the tumultuous heart of the nearby Perseus galaxy cluster, Hubble discovered a large population of small galaxies that have remained intact while larger galaxies around them are being ripped apart by the gravitational ...
Astronomy
Mar 12, 2009
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Astrophysicists say they have found an answer to why spiral galaxies like our own Milky Way are largely missing from a part of our local universe called the Supergalactic Plane.
Astronomy
Nov 20, 2023
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The constellation of Virgo (The Virgin) is the largest of the Zodiac constellations, and the second largest overall after Hydra (The Water Snake). Its most appealing feature, however, is the sheer number of galaxies that ...
Astronomy
Jul 22, 2013
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Using data provided by NASA's Chandra spacecraft, astronomers have identified a new unusual ultraluminous X-ray source (ULX) in the elliptical galaxy Messier 86. The newly found ULX, designated M86 tULX-1, resides some 62,000 ...
This image shows Arp 230, also known as IC 51, observed by the NASA/ESA Hubble Space Telescope.
Astronomy
Feb 2, 2015
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Astronomers have uncovered a unique process for how the universe's largest elliptical galaxies continue making stars long after their peak years of star birth. NASA's Hubble Space Telescope's exquisite high resolution and ...
Astronomy
Aug 6, 2015
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