Space Observatories Detect Newborn Supernovae

Credit: X-RAY (NASA/CXC/NCSU/S. REYNOLDS ET AL.); RADIO (NSF/NRAO/VLA/CAMBRIDGE/D. GREEN ET AL.)
A pair of astronomical observations 22 years apart has revealed that a supernova in the constellation Sagittarius occurred about 140 years ago, confirming it as the most recent stellar explosion observed in the Milky Way galaxy. In 1985, the National Radio Astronomy Observatory’s Very Large Array in...

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