Back in the '90s, most people took Pluto for granted. But fast forward to 2005, and then...
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Watch: Here's why some scientists think Pluto should still be a planet
Gina Echevarria, Business Insider US
NASA's chief, who has no scientific background, says Pluto is a planet
"I'm sticking by that — it's the way I learned it and I'm committed to it," NASA's Jim...
Tom Porter, Business Insider US