Space warp on the Milky Way

Tampa Bay Times - - Nation & World -

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.

Xiao­dian Chen/Chi­nese Acad­emy of Sciences via As­so­ci­ated Press

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