Most Americans over the age of thirty think Pluto is still a planet, though 18-29 year olds are split
Tomorrow the NASA spacecraft New Horizons will fly past Pluto, providing scientists with the best images to date of Pluto. Pluto was considered a planet until 2006, after the discovery of other large objects in orbit beyond Neptune led the International Astronomical Union (IAU) to reclassify Pluto as a 'dwarf planet'.
YouGov's latest research shows that most Americans (55%) still think that Pluto is a planet while 35% think that it is 'something else'. Among Americans over the age of 30 most agree that Pluto is a planet, but under-30s are divided. 42% of Americans aged 18 to 29 think that Pluto is not a planet while 40% do think that Pluto is a planet.
The argument over whether or not Pluto is a planet isn't completely over, however. Some scientists argue that Pluto, along with other dwarf planets such as Eris and Haumea, should also be considered planets not just 'dwarf planets'.