NASA’s NuSTAR Finds Evidence of a Lopsided Star Explosion

By mapping the radioisotope titanium-44, NASA’s NuStar reveals evidence of an asymmetrical explosion from supernova 1987A and helps to explain the mechanics of SN 1987A and of core-collapse supernovae in general. NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, has found evidence that a massive star exploded in a lopsided fashion, sending ejected material flying in […]
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