Astronomers find smallest ‘rogue planet’ in the Milky Way

Astronomers have detected the smallest rogue planet in our Milky Way galaxy, and it’s between the sizes of Mars and Earth. Rogue planets are free-floating planets that don’t orbit stars.

Astronomers have detected the smallest rogue planet in our Milky Way galaxy, and it’s between the sizes of Mars and Earth. Rogue planets are free-floating planets that don’t orbit stars.