How Pluto passed up its opportunity for “planet” status for a friend

Artist concept of New Horizons spacecraft. (Credit: Johns Hopkins/Applied Physics Laboratory. For print or commercial use, please contact: Smithsonian Institution.) https://www.flickr.com/photos/nasamarshall/14484529000/

Do you remember when Pluto was a planet? Those were the days when we had 9 planets in our Solar System and then things changed. Pluto was downgraded to a dwarf planet. Do you know the backstory behind that change? What may seem like some astronomical body’s decision to reclassify this celestial body was really…… Continue reading How Pluto passed up its opportunity for “planet” status for a friend