Mysterious 'fossilized' bubble 10,000 times the size of the Milky Way could be a relic from the Big Bang

Astronomers have spotted a gigantic void they believe to be a baryon acoustic oscillation — a relic from when the universe was a fiery plasma soup.

https://www.livescience.com/space/astronomy/mysterious-fossilized-bubble-10000-times-the-size-of-the-milky-way-could-be-a-relic-from-the-big-bang

#astronomy #BigBang #bubble #Boötes #baryon #acoustic #oscillation