From the Science I Don’t Understand But Still Presume Is Pretty Awesome department:
“The results suggested that there were some serious heavyweights among these stars. But, as noted above, Wolf-Rayet stars expel material rapidly, and these stars were over a million years old. When extrapolated back, it appeared that some of them formed with over 300 solar masses worth of material, about double the previously expected limit.” [more]
