Supernova G1.9+0.3. Credit: NASA/CXC/CfA/S. Chakraborti et al.
Scientists have used data from NASA’s Chandra X-ray Observatory and the NSF’s Jansky Very Large Array to determine the likely trigger for the most recent supernova in the Milky Way. They applied a new technique that could have implications for understanding other Type Ia supernovas, a class of stellar explosions that scientists use to determine the expansion rate of the Universe.
Astronomers had previously identified G1.9+0.3 as the remnant of the most recent supernova in our Galaxy, Type Ia category. It is estimated to have occurred about 110 years ago in a dusty region of the Galaxy that blocked visible light from reaching Earth...
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