The 30 billion times the size of the sun is BBC making a mistake. It is 30 billion solar masses. Direct from durham [1] from the arxiv article [2]. techwiz137

The 30 billion times the size of the sun is BBC making a mistake. It is 30 billion solar masses. Direct from durham [1] from the arxiv article [2]. techwiz137 pointed out[3] an existing known black hole, TON618, is 66 billion solar masses[4]. So the new find is large but not the largest ever found. [1]https://www.durham.ac.uk/news-events/latest-news/2023/03/light-bending-gravity-reveals-one-of-the-biggest-black-holes-ever-found--/ https://www.durham.ac.uk/news-events/latest-news/2023/03/lig... [2] https://arxiv.org/abs/2303.15514 https://arxiv.org/abs/2303.15514 [3] https://news.ycombinator.com/item?id=35360780 https://news.ycombinator.com/item?id=35360780 [4] https://en.wikipedia.org/wiki/TON_618 https://en.wikipedia.org/wiki/TON_618