The mysterious WMAP haze (Image: WMAP) Supernovae such as G1.9+0.3, at the centre of the Milky Way could be responsible for the unexplained “WMAP haze” (Image: X-ray (NASA/CXC/NCSU/S.Reynolds et al.); Radio (NSF/NRAO/VLA/Cambridge/D.Green et al.); Infrared (2MASS/UMass/IPAC-Caltech/NASA/NSF/CfA/E.Bressert)

WHAT is causing a mysterious “haze” of radiation at the centre of the Milky Way? It may be a load of monster supernovae kicking out radiation which is then amplified by magnetic stellar winds and turbulence near the galaxy’s core.

In 2003, the Wilkinson Microwave Anisotropy Probe found a patch of particularly energetic microwave radiation in the centre of our galaxy – dubbed …