
Scientists are building a better account of the lives of adolescent stars, starting from their births in collapsing clouds of cosmic gas and dust to the time they "fly the nest" and drift away from other young stars in their original clusters.
Studying these stellar timelines will help scientists better determine the ages of stars — and because age is a fundamental parameter in astrophysics, it can ultimately offer astronomers a clearer picture of how star systems, and even entire galaxies, evolve.