article_snippet: Planets become 'rogue' when Planets are ejected or form on Planets own and about 50 have been found in the last 15 years .
article_snippet: Rogue planets, or interstellar planets, are planetary objects that were either formed by Rogue planets, or interstellar planets or were ejected from a system.
article_snippet: ’s thought there may be many rogue brown dwarfs drifting through the galaxy waiting to be discovered.
article_snippet: ’ Rogue planets are of particular interest to astronomers because ’ Rogue planets represent objects that have likely failed to form into a star.
article_snippet: And this could indicate that there are more rogue planets than we know of in the cosmos.
highlights_snippet: Planets become 'rogue' when Planets are ejected or form on Planets own .
  