This year's Astronomy Lecture Series will take place at A Noise Within on March 30, April 13, April 27, and May 11. Click here for more information.

Pasadena, CA— A Carnegie-based search of nearby galaxies for their oldest stars has uncovered two stars in the Sculptor dwarf galaxy that were born shortly after the galaxy formed, approximately 13 billion years ago. The unusual chemical content of the stars may have originated in a single supernova explosion from the first generation of Sculptor stars. The team, which includes Carnegie’s Josh Simon, Ian Thompson, and Stephen Shectman, will publish their work in The Astrophysical Journal on Thursday.