Theorists have long suspected that the universe's very first stars were massive, because early gas clouds favored the formation of heavy stars. (sciencemag.org)
This immediately raised the question of what happened to much heavier stars when they ran out of fuel — did they go on contracting for ever until they became what we would now call a black hole? (newscientist.com)
Spin rates of stars are dependent on several characteristics of the bodies, including mass, with heavier stars rotating faster than less - massive bodies. (techtimes.com)