Growing Inventory of Black Holes Offers a Radical Probe of the Cosmos by Translucidmind | Oct 8, 2021 | Physics https://www.quantamagazine.org/new-black-holes-offer-physicists-a-radical-probe-of-the-cosmos-20210217/ https://www.quantamagazine.org/new-black-holes-offer-physicists-a-radical-probe-of-the-cosmos-20210217/