New James Webb Space Telescope images reveal the grisly past of Cassiopeia A, the youngest known supernova remnant in the Milky Way.
Astronomers have captured the sharpest image yet of the debris field of the Milky Way's most recent known supernova.
"Cas A represents our best opportunity to look at the debris field of an exploded star and run a kind of stellar autopsy to understand what type of star was there beforehand and how that star exploded," Danny Milisavljevic , an assistant professor of physics and astronomy at Purdue University in Indiana and the principal investigator of the Webb program that captured the observations, said in a statement .
"Compared to previous infrared images, we see incredible detail that we haven't been able to access before," Tea Temim , an astronomer at Princeton University and a co-investigator on the program, said in the statement. "We've nicknamed it the Green Monster in honor of Fenway Park in Boston," Milisavljevic said. ."If you look closely, you'll notice that it's pockmarked with what look like mini-bubbles. The shape and complexity are unexpected and challenging to understand."
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