This is one of the biggest stars in the Universe. Scientists say it looks like it's about to explode | BBC Sky at Night Magazine
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Star WOH G64 could be about to explode, and its extreme transition offers a rare opportunity to witness stellar transformations in real time.

…Research published in the journal Nature Astronomy shows how WOH G64, a giant binary star system in the Large Magellanic Cloud, has recently undergone a striking transformation…

…researchers say they’ve examined more than 30 years of brightness measurements and found that the star, long classified as a cold, red supergiant, has become markedly hotter – by over 1,000°C – and now appears yellow rather than red…