FILE PHOTO: A view of the Milky Way from an area of Puyehue National Park near Osorno City, Chile, May 8, 2008. REUTERS/Ivan Alvarado
WASHINGTON (Reuters) - Astronomers have created the most precise map to date of the Milky Way by tracking thousands of big pulsating stars spread throughout the galaxy, demonstrating that its disk of myriad stars is not flat but dramatically warped and twisted in shape.
The researchers on Thursday unveiled a three-dimensional map of the Milky Way - home to more than 100 billion stars including our sun - providing a comprehensive chart of its structure: a stellar disk comprised of four major spiral arms and a bar-shaped core region.
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