Stars’ mass may have upper limit

The universe is full of stars, but there appears to be few really fat ones. Astronomers said Wednesday that there seemed to be a stellar weight limit equivalent to 150 suns.
Using the Hubble Space Telescope to examine one of the densest clusters of stars in the Milky Way, which should have been brimming with fat stars, astronomers said they found a sharp cutoff in the mass of bodies that form in this stellar nursery.
Stars’ mass may have upper limit