Antarctica
Each year, scientists from 28 different nations conduct experiments not reproducible in any other place in the world. In the summer more than 4,000 scientists operate research stations; this number decreases to just over 1,000 in the winter. McMurdo Station, which is the largest research station in Antarctica, is capable of housing more than 1,000 scientists, visitors, and tourists.
Halzen Mesa
Halzen Mesa () is an oblong islandlike mesa, long and rising to , that is the largest and easternmost of three mesas in the Insel Range, McMurdo Dry Valleys, in Victoria Land. The upper surface is relatively level but the periphery is marked by abrupt cliffs that rise 500 to 600 m above the floor of Barwick Valley and McKelvey Valley. Named by the Advisory Committee on Antarctic Names in 2005 after Francis Halzen, Physics Department, University of Wisconsin–Madison, who in 1988 conceived of AMANDA, the Antarctic Muon And Neutrino Detector Array at Amundsen-Scott South Pole Station; United States Antarctic Program principal investigator in a project to build the IceCube neutrino telescope at the South Pole Station in six field seasons beginning 2004-05.