Book TV: Neil deGrasse Tyson "The Pluto Files"

Neil deGrasse Tyson talks about the controversy over re-classifying Pluto as a comet. New York's American Museum of Natural History, where this talk was held, was the first public institution to adopt this position.

• Category

  People & Blogs

[melese1988]

Rather than telling you that it's all a matter of (good informative) definition of the word 'planet', you should know that the count of planets was 16 and much higher. The sun and moon were once planets.

[KimBrusevoldTV]

Lol

[sparkmark1]

The Pluto Files was an interesting read, to be honest.

[FeelOfFriction]

It's still a planet.  Like it or not.