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Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume, by a small margin, but is less massive than Eris.
Pluto was considered a planet up until 2006, when researchers at the International Astronomical Union voted to "demote" it to dwarf planet. Pluto was considered a planet up until 2006, when ...
Reviews of the book have been generally positive, with James Kennedy of The Wall Street Journal calling the book a "brisk" and "enjoyable ... chronicle" of the tale of the search for new planets and the eventual demotion of Pluto from planetary status. [3] Janet Maslin of The New York Times called it a "short, eager-to-please research memoir". [4]
For 76 years, Pluto was considered out solar system's ninth planet. So what caused it to lose its planetary status? Find out on this episode of "Space, Down to Earth"!
For 76 years, Pluto was considered our solar system's ninth planet — so, what caused it to lose its status?
Pluto's planetary status was and is fondly thought of by many, especially in the United States since Pluto was found by American astronomer Clyde Tombaugh, and the general public could have been alienated from professional astronomers; there was considerable uproar when the media last suggested, in 1999, that Pluto might be demoted, which was a ...
After the success of the Voyager program, planetary scientists looked to Pluto as the destination for a subsequent mission. In the 1980s, Robert Farquhar proposed that a Pluto mission could be added to the proposed Solar Probe mission, [8] which at the time was proposed to fly by Jupiter on the way to its solar encounter. The mission was tagged ...
"The debate over Pluto’s status highlights the evolving nature of scientific classification."