What are spiral galaxies?

Mar 7, 2025 ... A star has been spotted shooting away from the heart of our galaxy at around 500 kilometres per second, giving astronomers clues about a group of stellar ... Jun 3, 2013 ... The center of the Milky Way likely still contains a "supermassive black hole" that the rest of the stars orbit around, but it turns out that the ... Conclusions. The orbital structure obtained for the APOGEE stars reveals that the Milky Way hosts an inner ring-like structure between the planar bar and ... Jul 25, 2019 ... The measurements also provided a more accurate mass for the black hole at the center of the galaxy — 3.984 million times the mass of the sun — ... Jul 7, 2022 ... It was when we went to sleep and in the middle of the night my buddy @kochimachan woke me up and got me out of the tent in pitch darkness and ... Dec 20, 2024 ... The closest star to our Sun is about four light-years away. In the center of the galaxy, stars are only 0.4 to 0.04 light-years apart. In the ... May 12, 2022 ... This is the first image of Sagittarius A*, the supermassive black hole at the center of our galaxy. It was captured by the Event Horizon ... Mar 9, 2014 ... ... center of the Milky Way Galaxy, 27000 light-years from Earth. Large quantities of interstellar dust and gas between the Galactic center and ... Oct 23, 2012 ... X-ray Flare at the Center of the Milky Way. Gc_xrayflare3up. NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, has captured these first, ... Oct 21, 2020 ... The supermassive black hole at the center of the Milky Way galaxy is not spinning much, providing more evidence that it is unlikely to have a jet.