Hidden in Plain Sight: Researchers Find Galaxy-Scale Bubbles Extending from the Milky Way: Scientific American

Hidden in Plain Sight: Researchers Find Galaxy-Scale Bubbles Extending from the Milky Way: Scientific American: Spergel notes that much astrophysical work focuses on filtering out the foreground of Milky Way structures to see into the distant universe. "For most cosmologists our galaxy is an enormous nuisance," he says. "This is one of those instances where one scientist's foreground and garbage is another scientist's field of study."