MARSIS below the southern polar ice cap, and extending horizontally about , the first known stable body of water on Mars. 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
University train of La Plata University train of La Plata The University train of La Plata is a commuter rail service part of Roca Line, currently being operated by State-owned company Trenes Argentinos. Trains run within La Plata city of buenos Aires Province in Argentina. The service was officially opened on 26 April 2013. The units are railbuses powered by a 1.7-litre diesel engines manufactured by FIAT and were manufactured and assembled by TecnoTren, a local company which developed a train that runs on abandoned tracks. The train runs through the "Paseo del Bosque" of La Plata, connecting La Plata station with the University of