Backyard Astronomy πŸ“‘ EarthSky by EarthSky Β· Fri, Mar 27, 2026

Strange star mystery solved after 50 years

For 50 years, astronomers have puzzled over a strange star in Cassiopeia bright in X-rays. But new data from XRISM revealed the culprit: a hidden companion. The post Strange star mystery solved after 50 years first appeared on EarthSky.

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