MARSIS MARSIS MARSIS (Mars Advanced Radar for Subsurface and Ionosphere Sounding) is a low frequency, pulse-limited radar sounder and altimeter developed by the University of Rome La Sapienza and Alenia Spazio (today Thales Alenia Space Italy). The Italian MARSIS instrument is operational on the European Space Agency, "Mars Express" orbiter mission. The MARSIS Principal Investigator is Giovanni Picardi from the University of Rome "La Sapienza", Italy. It features ground-penetrating radar capabilities, which uses synthetic aperture techniques and a secondary receiving antenna to isolate subsurface reflections. MARSIS identified buried basins on Mars. MARSIS was funded by ASI (Italy) and NASA (USA). On
La Porte City, Iowa La Porte City, Iowa La Porte City is a city in Black Hawk County, Iowa, United States. The population was 2,285 at the 2010 census. It is part of the Waterloo–Cedar Falls Metropolitan Statistical Area. La Porte City was platted in 1855. It is named after La Porte, Indiana, the former home of one of its founders. La Porte City is located at (42.313606, -92.188291). According to the United States Census Bureau, the city has a total area of , of which, is land and is water. As of the census of 2010, there were 2,285 people, 915 households, and