Tycho Brahe was a Danish nobleman and the most skilful astronomer of the sixteenth century. He was paid by King Frederick II of Denmark to observe the heavens from his underground observatory with the naked eye. It would be thirty years until the telescope would be invented.
Tacho before and after his life changing injuries
Tycho watched the movements of the planets more precisely than anyone in Europe had done before him. His discoveries were astonishing and dangerous because in the sixteenth century it was commonly believed that the universe had not changed since the beginning of time. To believe otherwise could lead to charges of heresy for which the punishment was often death.