We show our rapid rotation models in the HR diagram compared with the observations. We find that the rotational mixing is less efficient at high metallicity, and these stars become Wolf-Rayet (WR) ...

Only one of the stars in WR 140 is a Wolf-Rayet star, roughly 10 times more massive than the Sun. Webb has imaged Wolf-Rayet stars before; in 2023, the space observatory captured a brilliant view ...