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Off Topic / Re: Harvard babbles about planets; NASA launches mission to Pluto to take pics
« on: October 01, 2014, 04:40:55 PM »
The definition of planet has changed over the years. It isn't like people are saying 1+1=3. A definition of a word to describe a celestial body does not have to be concrete. It used to be that "nothing could escape black holes," but then we discovered Hawking radiation.

