I love how Weir says something like a quarter of a star system as she's chewing him out, and he corrects it to 3/5ths. A larger number.
Weir: You destroyed three-quarters of a solar system! McKay: Five-sixths, but it's not an exact science.
Your point still stands: he corrected her with a larger number.
Interesting to see these two scenes side-by-side and notice the difference in coloring. The Tyson scene here is earlier in the episode, and has a warm color tone. Then there is the Nye scene which takes place after the building started freezing, and the color tone is much cooler.
The episode takes place in the middle of the desert somewhere, but I do not think they mentioned anything more specific than that.
I’m making fun of the sepia filter trope https://tvtropes.org/pmwiki/pmwiki.php/Main/WarmPlaceWarmLighting. Particularly notable in breaking bad when they were in Mexico.
You can still do all the circle geometries and reality warping scifi geometry shit with Pluto, so I don't see how it isn't a planet of some kind.