Open source cross-platform Java Visual Traceroute
... the open-source glide computer
NMEA 0183 library for Java
Advanced mission simulation and analysis tool
Flights, vessels, satellites and trackers realtime 2D/3D display
Distributed Version Control System for Geospatial data
OTB is an open-source C++ library for remote sensing images processing
Geospatial Distributed Version Control System
MeteosatTool is for visualization and processing meteo satellite image