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A dark galaxy is a hypothesized galaxy with no (or very few) stars. They received their name because they have no visible stars but may be detectable if they contain significant amounts of gas. Astronomers have long theorized the existence of dark galaxies, but there are no confirmed examples to date. [1]
NGC 1052-DF2, an ultra diffuse galaxy. An ultra diffuse galaxy (UDG), or dark galaxy, [1] is an extremely low luminosity galaxy, the first example of which was discovered in the nearby Virgo Cluster by Allan Sandage and Bruno Binggeli in 1984. [a] These galaxies have been studied for many years prior to their renaming in 2015. Their lack of ...
The quasar is near the center of the image; no obvious host galaxy is seen. Near the top of the image is a strongly disturbed and star-forming galaxy. Near the quasar is a blob of gas that is apparently being ionized by the quasar radiation. The pointlike object on the lower right is a foreground star seen by chance in the field of view.
The complexities of space are pretty mind-boggling, but there are a handful of accepted theories on which scientists base their research. Space is a vacuum, for example, while a light-year is ...
NGC 1052-DF2 is an ultra diffuse galaxy (UDG) identified in a wide-field imaging survey of the NGC 1052 group by the Dragonfly Telephoto Array. [2] It has been proposed that the galaxy contains little or no dark matter, the first such discovery.
The dark matter halo is estimated to have 10 times the mass of the stars in the galaxy. NGC 4555 is important because of its isolation. Most elliptical galaxies are found in the cores of groups and clusters of galaxies, and almost all those for which dark matter estimates are available located in the centers of these larger systems. In these ...
NASA's powerful Webb Telescope has spotted more than 40 ancient stars in a distant galaxy, researchers said in a new study. The study, published Monday in Nature, said the researchers used a ...
The clouds are an obstruction to millions of the galaxy's stars detected at visible wavelengths, which compose a bright hazy band appearing 30° wide and arching through the night sky. The clouds within our radial sector of the galaxy span about 800–1,000 parsecs (2,600–3,300 ly ) from Earth. [ 1 ]