12/12/2022
Peekaboo! 🫣
Hubble helped find a galaxy peeking out from behind the glare of a bright, foreground star. Nicknamed the Peekaboo Galaxy, it's an extraordinary example of a relatively nearby galaxy (20 million light-years away) that shares traits with our universe's earliest galaxies.
Peekaboo is an extremely metal-poor galaxy, meaning that it lacks elements heavier than hydrogen and helium. The very early universe was almost entirely made up of primordial hydrogen and helium, which were forged in the big bang.
Heavier elements were forged by stars over the course of cosmic history, building up to the generally metal-rich universe humans find ourselves in today.
Discover more: https://go.nasa.gov/3Y1ZG6g
Image credit: NASA, ESA, Igor Karachentsev (SAO RAS); Image Processing: Alyssa Pagan (STScI)