Thomas Haworth for Science News explained solo planets could be common . This is thanks to more regions of dust and gas than we thought . Planets become 'rogue ' when they are ejected or form on their own . About 50 have been found in the last 15 years . But as they do n't orbit a star they reflect little light and are hard to find .
Ashley Yeager for Science News explained solo planets could be common . This is thanks to more regions of dust and gas than we thought . Planets become 'rogue ' when they are ejected or form on their own . About 50 have been found in the last 15 years . But as they do n't orbit a star they reflect little light and are hard to find .