Globalstar is a LEO (Low Earth Orbiting) satellite-based digital telecommunicationsystem that makes worldwide wireless telecommunications since 1999 possible.
Globalstar uses dual-mode handsets. These devices make it possible to switch between cell towers and satellite connections. If the mobile phone has no reception, the unit automatically switches to a satellite connection.
The European Space Agency European Space Agency (ESA) keeps busy with projects at European level in the field of space research of the Earth, space research, development of satellite-based technologies and the promotion of the European economy.