Pluto to get its planet status back?

Harvard-Smithsonian Center debate comes to conclusion that Pluto IS a planet. There were once nine planets. Everyone lea8rned them, sometimes aided by a mnemonic: "My Very Excellent Mother Just Sent Us Nine Pizzas." But back in 2006, the International Astronomical Union, arbiter of what is and what isn't a planet, stri8pped Pluto of its status, saying it was too small to pack sufficient gravitational punch. It was downgraded to a second-class status: "dwarf planet." So then there were eight: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune, or "My Very Excellent Mother Just Served Us Nachos." 

The decision did not sit well with the public. Recently, the Harvard-Smithsonian Center held a debate - pro and con - and let the audience vote. The result: "Pluto IS a planet." The debate was around IAU's demands of a planet - that it must: be in orbit around the Sun, be round or nearly round, and be shown to have "cleared the neighbourhood" around its orbit, be gravitationally dominant in its area. - the big kid on the block. Pluto was originally kicked out because it did not "clear the neighborhood." the independentIt is indeed small. It has a radius of about 750 miles - less than 20 per cent of the Earth's radius. Its circumference is about 4,500 miles, which makes it smaller than the moon. You could fly around its equator faster than flying from Washington, DC, to Hawaii. According to a release from the centre, Owen Gingerich, who chaired the IAU planet definition committee, presented the historical viewpoint. He said Pluto is a planet, and "a planet is a culturally defined word that changes over time." Gareth Williams, associate director of the Minor Planet Center, presented the IAU's viewpoint - that Pluto is not a planet. And Dimitar Sasselov, director of the Harvard Origins of Life Initiative, "presented the exoplanet scientist's viewpoint." Sasselov argued, among other things, that the criteria for planethood was sun-centric, excluding planets beyond our solar system, or so-called "exoplanets." He offered an alternative definition: A planet, he argued, is "the smallest spherical lump of matter that formed around stars or stellar remnants." That opened up a lot of possibilities, one of them clearly being the reinstatement of Pluto.