For the primary time, astronomers have mixed knowledge from NASA’s Chandra X-ray Observatory and James Webb Space Telescope to check the well-known supernova remnant Cassiopeia A (Cas A). This work has helped clarify an uncommon construction within the particles from the destroyed star known as the “Green Monster,” due to its resemblance to the wall within the left subject of Fenway Park.

Image Credit: X-ray: NASA/CXC/SAO; Optical: NASA/ESA/STScl; IR: NASA/ESA/CSA/STScl/Milisavljevic et al., NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and Ok. Arcand

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