Source is season 1, episode 1.

That's right! A whole anime about heliocentrism is airing this season. The first three episodes have been an absolute ride and the end of episode three just left me staring at the screen wondering what could possibly happen from here. If you do check this show out, make sure to watch through episode 3 at least.

Despite the setting resembling that of 15th century Poland, the series is very much fictional. It draws inspiration from our history and geography, but is fictionalized for the sake of drama. I have written about some of the science and history touched on in the show in the episode 1 discussion thread if you are curious.

The show is incredibly tense (and does occasionally feature torture scenes for those that are sensitive to such things). When you are dabbling in research that, if discovered, would cost you your life, then any misstep will be your last.