In the Andromeda galaxy, the oldest individual stars are found in the galaxy’s halo. However, globular clusters and random field stars may prove to contain the oldest stars of all in the entire Universe. Image credit: NASA, ESA and T.M. Brown (STScI).

The Greatest Cosmic Puzzle: Astronomers Find Stars That Appear Older Than The Universe

Something’s got to be wrong. But is it what we think about the star, the Universe, or something else?

Ethan Siegel
Sep 14, 2017 · 7 min read

“The older you get, the more you realize that the way you look is a reflection of how you treat yourself.” -Hope Davis