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
City and University Library in Osijek City and University Library in Osijek The City and University Library of Osijek () is the city library of Osijek and the central library of the University of Osijek. It is the biggest library in Slavonia and one of the bigger ones in Croatia. The City and University Library of Osijek was established as "Osijek City Library" () on 8 February 1949, by decision of City national committee of the City of Osijek. In 1957 library was moved into former "House of Gillming-Hengl", building on European Avenue, where library is located today. In 1975 was established University of Osijek, whose