Is Earth orbiting a black hole?

Could you elaborate on the idea that Earth is orbiting a black hole? I'm curious to understand the scientific basis for such a claim, as our current understanding of astronomy and physics suggests that the Earth orbits the Sun, which is a star, not a black hole. Could you explain how a black hole could have such a significant gravitational pull on our planet, and how it would affect our solar system and the universe as a whole? Additionally, what evidence exists to support this theory, and how does it compare to the widely accepted model of our solar system?