IMDB shows 14 episodes https://www.imdb.com/title/tt1832668/episodes?season=8&ref_=tt_eps_sn_8

Yes, but if you look at them closely, none of them are the two I listed. and all the ones after the first 9 are off season episodes that are just mashups of other episodes. They should not be listed in any season. If they are listed at all, it should be in Specials. Personally. I wish no one would list the countless mashup episodes from the Science Channel, as they are just a cheap way for them to pretend they are producing new content and just waste the time of people who don't catch what they are - unless they want to see the same material presented in multiple ways.

Thanks

The 2010 series "How the Universe Works" lists two episodes at the end of Season 8, Episode 10 "Earth's Cosmic Journey" and Episode 11 "Moon" that don't really seem to exist. If I'm correct, they should be removed.

I removed "Earth's Cosmic Journey" and "Moon" from Season 8 because only nine episodes are part of the original US season. However, I moved them to the specials because some international broadcast have two extra episodes:

https://www.discoveryuk.com/series/how-the-universe-works/?ss=8#episodes
https://www.discoveryplus.it/programmi/come-funziona-luniverso