Hold your breath: astronomers are re-evaluating their definition of a planet. Spoiler: it won’t bring Pluto back into the family.
The post How to Define a Planet – The Sequel appeared first on Sky & Telescope.
Hold your breath: astronomers are re-evaluating their definition of a planet. Spoiler: it won’t bring Pluto back into the family.
The post How to Define a Planet – The Sequel appeared first on Sky & Telescope.