Hacker News
- Ceres: The Planet That Wasn't http://www.bbc.com/earth/story/20150831-the-planet-that-wasnt 24 comments
- Pluto was't the only planet to get demoted. Before Pluto, there was Ceres, the "Planet that Wasn't". http://www.bbc.com/earth/story/20150831-the-planet-that-wasnt 5 comments space