The Milky Way’s central black hole may have turned nearby red giant stars blue
A powerful blast from the supermassive black hole may explain a lack of large, red stars there

The Milky Way’s galactic center, shown here in radio waves (red) and x-rays (green and blue), has a supermassive black hole that may have whittled away nearby red giants.
X-ray: CXC/NASA, D. Wang et al./UMass; radio: MeerKAT/SARAO