Started watching Orb. Really great anime so far. I'm definitely hooked.

Synopsis:

Orb: On the Movements of the Earth is a historical drama anime about a secret society in 15th-century Europe fighting to prove the heliocentric theory (that the Earth revolves around the Sun) against the powerful, oppressive Church that enforces the geocentric view, exploring themes of scientific discovery, faith, power, and the human pursuit of truth through a multi-generational saga of scholars risking their lives for forbidden knowledge.