Blue supergiants are rock ’n’ roll: they live fast and die young. This makes them rare and difficult to study. Before space telescopes were invented, few blue supergiants had been observed, so our knowledge of these stars was limited. Using recent NASA space telescope data, an international team led by KU Leuven studied the sounds originating inside these stars and discovered that almost all blue supergiants shimmer in brightness because of waves on their surface.
Since the dawn of humanity, the stars in the night sky have captured our imagination. We even sing nursery rhymes to children pondering the nature of stars: "Twinkle, twinkle little star, how I wonder what you are". ...
