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
Peggy Rae Sapienza the library’s efforts to collect materials related to SF, fantasy, and horror, and to make those materials available to the public. In a tribute to her on his blog, "Whatever", John Scalzi wrote: "...I considered Peggy Rae a friend, and deeply admired her competence and her cheerfulness in being so. If Peggy Rae was running things, basically, I felt in safe hands. She’ll be remembered ...by all of science fiction fandom." Peggy Rae Sapienza Peggy Rae Sapienza, (born McKnight, previously Pavlat, 28 June 1944 – 25 March 2015), was a second generation science fiction fan and a consummate con-runner and