The dance of two stars can lead to a wide variety of stellar fates, from extreme loss of stellar material to the creation of helium stars. Many helium stars should exist, but until now, they have remained elusive. Revealing their true nature is a leap into a journey starting with stellar couples close to our home, the Milky Way galaxy, but stretching back in time to when the universe was young.

Dr. Ylva Goetberg, Hubble Postdoctoral Fellow, Carnegie Observatories; former-Nashman Postdoctoral Fellow, Carnegie Observatories