[4] Detailed studies of the galaxy were reported in November 2022, and were based on work using the Hubble Space Telescope.
[4][7] The astronomers were able to closely examine about 60 of the individual stars in the galaxy, all appearing relatively young, a few billion years old or younger.
"[5] According to current thinking, early in the formation of the universe, 13.8 billion years ago, the earliest first stars were made, and were mostly composed of hydrogen and helium.
Later, these very early stars fused their hydrogen and helium into heavier elements, up to, and including, iron.
Karachentsev et al. write that the age of the Peekaboo Galaxy is "decidedly ambiguous".