From red supergiant to yellow hypergiant: this is how WOH G64, one of the largest stars in the Universe, has changed

One of the most massive stars in the Universe known, the red supergiant WOH G64, could have evolved into a yellow hypergiant between 2013 and 2014, as suggested by the analysis of 30 years of observations. A team led by the Spanish Gonzalo Muñoz has witnessed the process Read

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