Enlarge / The tattered shell of the first recorded supernova (Sn185) was captured by the Dark Energy Camera. This image covers an impressive 45 arcminutes in the sky—a rare view of the entirety of this supernova remnant.CTIO/NOIRLab/DOE/NSF
In early December 185 CE, Chinese astronomers recorded a bright “guest star” in the night sky that shone for eight months in the direction of Alpha Centauri before fading away—most likely the earliest recorded supernova in the historical record. The image above gives us a rare glimpse of the entire tattered remnant of that long-ago explosion, as captured by the Dark Energy Camera
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