Danish astronomer Tycho Brahe’s model, in which most of the universe orbits the Earth, but the other five known planets circle the sun. John Huchra, Thomas Jarrett 2Mass Collaboration ...

The Danish astronomer Tycho Brahe became famous as the creator of the geoheliocentric model of the Solar System, which combined elements of Copernicus's heliocentrism and Ptolemy's geocentrism.

T ycho Brahe was an alchemist who was reluctant to share his discoveries. In his laboratory, however, he worked with an element that humanity discovered nearly 200 years after his death.