According to Dr. Grundy, Pluto is a planet. "I use the word 'planet' to refer to it, and most of the planetary science ...
Scientists at NASA for the first time have been able to observe the make up of Pluto and other small and icy celestial bodies ...
In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...
For decades, Pluto was celebrated as the ninth planet of our solar system. However, in 2006, the International Astronomical Union (IAU) redefined what constitutes a planet, leading to Pluto’s ...