'Completely Invisible, Yet Unbelievably Influential': NASA Explains How Spiral Galaxies Get Their Shape

NASA has shared a stunning photograph on Instagram of a galaxy called M77, and has offered a brief explanation of how it has been “shaped.” For a long time, the shapes of many galaxies, including our own Milky Way, have puzzled many scientists. The Milky Way is spiral-shaped and has arms full of stars. However, have you ever wondered how it got its shape? Click he...

source https://gadgets.ndtv.com/science/news/nasa-instagram-galaxy-formation-explainer-magnetic-field-shape-milky-way-m77-messier-77-2492886#rss-gadgets-all