Pluto (Score: 1, Informative) by Anonymous Coward on 2016-09-03 15:32 (#1SK09) We already have a ninth planet ThankYouVeryMuch Re: Pluto (Score: 1) by firstname.lastname@example.org on 2016-09-03 18:53 (#1SKE9) Eris is 27% more massive than Pluto. It even has one known moon. You can't have just 9 planets. It's either 8 or 10+. Re: Pluto (Score: 0) by Anonymous Coward on 2016-09-10 14:54 (#1T9KR) Eris is 27% more massive than dwarf planet Pluto, though Pluto is slightly larger by volume. From it's orbit, Eris would be #10. Re: Pluto (Score: 1) by email@example.com on 2016-09-10 18:36 (#1TA4X) My point was: we can't go back to exactly 9 planets. You'd be hard-pressed to write a criteria that includes Pluto without including Eris... And frankly, we'll probably find several even larger trans-Neptunian planetoids, in time.