Twinkling of giant stars reveals how their innards churn in first-ever simulations

Secrets hide in the twinkling of stars. A research team led by scientists at the Flatiron Institute and Northwestern University has created first-of-their-kind computer simulations showing how churning deep in a star’s depths can cause the star’s light to flicker. This effect is different from the visible twinkling of stars in the night sky caused by Earth’s atmosphere.