Copernicus' heliocentric model allowed the stars to be placed uniformly through the (infinite) space surrounding the planets, as first proposed by Thomas Digges in his "Perfit Description of the Caelestiall Orbes according to the most aunciente doctrine of the Pythagoreans, latelye revived by Copernicus and by Geometricall Demonstrations approved" (1576). Giordano Bruno accepted the idea that space was infinite and filled with solar systems similar to our own. n; for the publication of his various beliefs, he was burnt at the stake in Rome on 17 February 1600.