Explain xkcd: It's 'cause you're dumb.
The explanation says: "... Pluto has been the ninth planet in our solar system until 2006 ...".
It should says 'the tenth' isn'it?
SioD (talk) 14:52, 30 August 2013 (UTC)
- Pluto was discovered in 1930, and has been since the ninth body to be discovered and classified as a "planet". The sentence is a temporal rather than spacial reference, if that clears up any confusion. Thokling (talk) 12:04, 24 September 2013 (UTC)