dwarf galaxy
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Webb Telescope Data Suggests There May Not Be a Ton of Supermassive Black Holes
A team of researchers scrutinising the Extended Groth Strip, a region of space between the constellations Ursa Major and Boötes, saw fewer growing supermassive black holes and less dust than they expected. The team was investigating active galactic nuclei, or AGN, galactic cores that expel high amounts of radiation, sometimes in the form of particle…
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Astronomers Found an Ancient Galaxy with a Halo of Dark Matter
Some 163,000 light-years from the Milky Way is a much smaller, much more ancient galaxy: Tucana II, so named for the tropical bird-resembling constellation in which it sits. Sitting at the periphery of our galaxy’s gravitational pull, Tucana II provides researchers with the opportunity to understand the composition of the earliest galactic structures in the…
