Space
If you're of my own generation or older, you remember when dear old Pluto was the 9th and smallest planet in our solar system. In elementary school, I was taught recite "Mercury-Venus-Earth-Mars-Jupiter-Saturn-Uranus-Neptune-Pluto" in a singsong way that left the order of the planets engraved in my memory, even long after I abandoned the subject of Astronomy.
I was aghast to hear in 2006 that Pluto had been demoted from planet status. Not only was my singsong chant obsolete, my entire solar system just wasn't what it used to be. I pitied Pluto for being kicked out of the Big Kid's Club and made to sit with the other dwarf planets.
I take great pleasure in learning that today, Pluto has made a triumphant return to the spotlight, not as the king of the dwarfs, but as one of only two "Plutoids" in the solar system. (The other is Eris.) Way to go, Pluto! That'll teach 'em!
To learn more, visit http://dsc.discovery.com/news/2008/06/11/pluto-plutoids.html
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