So astronomers just announced a new 10th planet. Seems like I hear about a new 10th planet about once a year for the last 10 years. Are people just rediscovering the same object? Are they forgetting that we already discovered a 10th planet and this is really the 11th (and 12th and 13th etc.) planet? Are they announcing the new 10th planet and then quietly ignoring the news when planet status has been rejected? Is my middle name Andrew?