Chandra
SpaceXMM-Newton gamma-ray detection shows the Milky Way is bigger than previously thought
X-ray echoes from distant gamma-ray bursts helped redraw parts of the Milky Way, pushing two outer arms farther out.
Joseph Shavit
X-ray echoes from distant gamma-ray bursts helped redraw parts of the Milky Way, pushing two outer arms farther out.
Joseph Shavit