Astronomers Uncover Billion-Light-Year-Wide 'Bubble of Galaxies'

Astronomers have discovered a massive "bubble of galaxies" spanning a billion light years, believed to be a fossilized remnant from just after the Big Bang. The bubble, named Ho'oleilana, is located 820 million light years away from the Milky Way and contains the Bootes supercluster of galaxies. This discovery confirms a phenomenon first described in 1970 and provides insights into the early universe. The finding was published in The Astrophysical Journal and could lead to the identification of more bubbles using advanced telescopes.