First 'bubble of galaxies' discovered: Size and all other details

Astronomers have discovered a massive bubble of galaxies, believed to be a remnant from the early universe. The bubble is a billion light years wide, making it 10,000 times wider than the Milky Way galaxy. It is located 820 million light years away from our galaxy. Inside the bubble is the Bootes supercluster of galaxies, surrounded by a vast void known as "the Great Nothing". The discovery confirms a theory about the creation of bubbles in the early universe, and this is the first known single baryon acoustic oscillation. The bubble has been named Ho'oleilana.

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