Example image of eyePlorer eyePlorer map for 'Fritz Zwicky': Astronomer Switzerland California Institute of Technology United States Bulgaria Varna Glarus ETH Zurich Zürich Robert Andrews Millikan Mount Wilson Observatory Palomar Observatory Great Depression Morphological analysis Mollis Schmidt camera Walter Baade Cosmic ray Neutron star Supernova Jean Mueller Paul Wild (Swiss astronomer) Cosmic distance ladder Edwin Hubble Type Ia supernova Einstein effect Gravitational lens Twin Quasar Coma Cluster Dark matter Virial theorem Galaxy rotation curve Cepheid variable Metric expansion of space Sputnik 1 Presidential Medal of Freedom Gold Medal of the Royal Astronomical Society 1803 Zwicky Zwicky (crater) Hubble's law Tired light Catalogue of Galaxies and Clusters of Galaxies Morphological analysis (problem-solving) Timeline of knowledge about galaxies, clusters of galaxies, and large-scale structure 1933 in science I Zwicky 18 Morphological box Palomar 12 Palomar 6 Leo A