Billion-light-year-wide 'bubble of galaxies' discovered

Astronomers have discovered the first "bubble of galaxies," an almost unimaginably huge cosmic structure thought to be a fossilised remnant from just after the Big Bang sitting in our galactic backyard. The shell contains several other galaxy superclusters already known to science, including the massive structure known as the Sloan Great Wall. But the newly discovered bubble is the first known single baryon acoustic oscillation, according to the researchers. 'Unexpected'The astronomers called their bubble Ho'oleilana -- "sent murmurs of awakening" -- taking the name from a Hawaiian creation chant. The bubble was discovered by chance, as part of Tully's work searching through new catalogues of galaxies.