“Astronomers had once calculated that billions of planets had gone rogue in the Milky Way. Now, scientists at NASA and Osaka University in Japan are upping the estimate to trillions.”

https://www.nytimes.com/2023/08/06/science/space/our-galaxy-is-home-to-trillions-of-worlds-gone-rogue.html?smid=nytcore-ios-share&referringSource=articleShare