Most massive touching stars ever found will eventually collide as black holes

A new study looked at a known binary star (two stars orbiting around a mutual center of gravity), analyzing starlight obtained from a range of ground- and space-based telescopes. The researchers found that the stars, located in a neighboring dwarf galaxy called the Small Magellanic Cloud, are in partial contact and swapping material with each other, with one star currently ‘feeding’ off the other. They orbit each other every three days and are the most massive touching stars (known as contact binaries) yet observed.
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