From the August 2010 issue

David H. Levy’s Evening Stars: Pluto’s second chance

October 2010: The planetary scientists of tomorrow choose a definition of planet for today.
By | Published: August 23, 2010 | Last updated on May 18, 2023
October 2010 Roslyn's campus
Roslyn’s campus is not only home to the author’s grade school classrooms, but it was also where the recent Pluto vote took place, unofficially reinstating it as a major planet.
David H. Levy

In 2006, the International Astronomical Union (IAU) voted to demote Pluto to dwarf planet status. Four years later, Pluto reclaimed its status as the ninth planet after a second vote — at least, it did so in the eyes of the unofficial voters.