Stars Almost Never Born Alone

Stars rarely form in isolation. They emerge in massive clusters within stellar nurseries, meaning our Sun likely had thousands of siblings during its infancy.

Giant molecular clouds act as cosmic factories where gravity pulls gas together to ignite multiple stars at once. Because these regions are so crowded, stars usually grow up as members of a bustling stellar family rather than solo entities. Over time, these groups often drift apart, scattering across the galaxy to lead independent lives. Understanding this social birth is key to solving how planets, including our own, eventually find their way into orbit.