Giordano Bruno , born Filippo Bruno, was an Italian Dominican friar, philosopher, mathematician, poet, and astrologer. He is celebrated for his cosmological theories, which went even further than the then-novel Copernican model: while supporting heliocentrism, Bruno also correctly proposed that the Sun was just another star moving in space, and claimed as well that the universe contained an infinite number of inhabited worlds, identified as planets orbiting other stars.