There May Be 50 Billion Rogue Planets in Our Galaxy

https://www.extremetech.com/wp-content/uploads/2018/08/RoguePlanet-768x424.jpg 768w, https://www.extremetech.com/wp-content/uploads/2018/08/RoguePlanet-640x353.jpg 640w, https://www.extremetech.com/wp-content/uploads/2018/08/RoguePlanet-106x59.jpg 106w, https://www.extremetech.com/wp-content/uploads/2018/08/RoguePlanet-672x371.jpg 672w, https://www.extremetech.com/wp-content/uploads/2018/08/RoguePlanet.jpg 1344w" sizes="(max-width: 300px) 100vw, 300px" /> People used to argue about whether planets like the eight (or more) in our solar system were rare. Starting in the 1990s with the discovery of the first exoplanets, it became clear