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The Large Magellanic Cloud, a satellite galaxy of the Milky Way. A dwarf galaxy is a small galaxy composed of about 1000 up to several billion stars, as compared to the Milky Way's 200–400 billion stars. [1]
The dwarf galaxy known as Segue 2 is bound together by a tiny clump of dark matter. Scientists who measured it using Hawaii's Keck Observatory say the finding adds support to theories about...
The ghostly object, catalogued as NGC 1052-DF2, thought to be dark matter-free, can only exist alongside galaxies like Segue 1 and Segue 3 in a Universe where dark matter exists, but a...
Segue 2 is one of the smallest and faintest satellites of the Milky Way —its integrated luminosity is about 800 times that of the Sun (absolute visible magnitude of about −2.5), which is much lower than the luminosity of the majority of globular clusters.
An impossibly small clump of stars is orbiting the Milky Way without breaking apart, which could mean it is the least massive galaxy ever spotted.
Astronomers have used the James Webb Space Telescope (JWST) and an effect predicted by Albert Einstein over 100 years ago to discover that small galaxies in the early cosmos packed a...
Willman 1 is an ultra low-luminosity dwarf galaxy or a star cluster. [3] Willman 1 was discovered in 2004 and is located near Ursa Major in the night sky. [4] [5] It is named after Beth Willman of Haverford College, the lead author of a study based on the Sloan Digital Sky Survey data. [6]
A resident of the constellation Leo, the newly discovered galaxy called Leo T is only about 600 light-years across—about one-sixteenth the diameter of the Milky Way—and 50,000 times brighter than...
The galaxy is one of the smallest ever discovered at this distance—around 500 million years after the Big Bang—and could help astronomers learn more about galaxies that were present shortly after the Universe came into existence.
The past two decades have clearly revolutionized our view of the smallest of galaxies, highlighting their key role in our understanding of galaxy evolution: this sheer number of multifaceted...