Space warp on the Milky Way
Scientists in China and Australia released an updated 3D map of the Milky Way on Tuesday, one for which they used 1,339 pulsating stars — young, newly catalogued stars bigger and brighter than our sun — to map the galaxy’s shape. The farther from the center, the more warping, or twisting, there is in the Milky Way’s outer hydrogen gas disc. Researchers said the warped, spiral pattern is likely caused by the spinning force of the massive inner disc of stars. At least a dozen other galaxies appear to have warped edges in a similar spiral pattern, so we’re hardly unique. The study appears in the journal Nature Astronomy.