Since 1955, it has been assumed that the composition of stars in the universe’s other galaxies is similar to that of the hundreds of billions of stars within our own — a mixture of massive, medium mass and low mass stars. But with the help of observations from 140,000 galaxies across the universe and a wide range of advanced models, the team has tested whether the same distribution of stars apparent in the Milky Way applies elsewhere. The answer is no.
Stars in distant galaxies are typically more massive than those in our “local neighborhood.”
The increased mass might explain some of the dark matter for which we search.
From Science Daily