
A free-floating rogue planet the size of Saturn is the first to have its mass measured thanks to a lucky convergence of ground- and space-based telescopes
https://www.newscientist.com/article/2509858-rare-saturn-sized-rogue-planet-is-first-to-have-its-mass-measured/
2 Comments
A free-floating planet, opposite to what?
“Mass is the main parameter deciding on the classification as a planet,” someone let the IAU know