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Should Pluto be a planet again? The debate rages on

A group of researchers say Pluto was unfairly maligned by a decision to relegate it to “dwarf planet” status — and that we should consider our solar system to have more than 150 planets.

This image made available by NASA on Friday, July 24, 2015 shows a combination of images captured by the New Horizons spacecraft with enhanced colors to show differences in the composition and texture of Pluto's surface.

A team of scientists wants Pluto classified as a planet again — along with dozens of similar bodies in the solar system and any found around distant stars.

The call goes against a controversial resolution from 2006 by the International Astronomical Union that decided Pluto is only a “dwarf planet” — but the researchers say a rethink will put science back on the right path.

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Pluto had been considered the ninth planet since its discovery in 1930, but the IAU — which names astronomical objects — decided in 2006 that a planet must be spherical, orbit the sun and have gravitationally “cleared” its orbit of other objects.


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