The iconic supernova blazed with the power of 100 million suns for several months after being discovered close to our galaxy in 1987.
The dust in this region is so dense that even the Webb's NIRCam is unable to penetrate it, producing the dark"hole" in the keyhole. Surrounding the inner keyhole is a bright equatorial ring that was formed from material ejected tens of thousands of years before the supernova explosion occurred.
Although the supernova has been well studied over the past few decades, several unknowns about the cosmic event remain. Credits: NASA, ESA, CSA, M. Matsuura Cardiff University), R. Arendt NASA’s Goddard Spaceflight Center & University of Maryland, Baltimore County), C. Fransson (Stockholm University, and J. Larsson (KTH Royal Institute of Technology. Image Processing: A. Pagan's Hubble and Spitzer space telescopes and the Chandra X-ray Observatory, will continue to study the supernova over the coming years.
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