home.md

@@ -64,6 +64,8 @@ Then, <span dir="">the user segment plays a critical role in enabling GNSS appli
 
 [User segment](https://gitlab.univ-eiffel.fr/teamgeoloc/smartloc/-/wikis/User%20segment)
 
+Moreover, <span dir="">the space segment is the backbone of the GNSS system, it provides the signals that are used to determine the user's position, velocity, and time, and it also provides the necessary information to correct errors in the user's receiver clock.</span>
+
 [Spatial segment](https://gitlab.univ-eiffel.fr/teamgeoloc/smartloc/-/wikis/Spatial%20segment)
 
 [Why do you need 4 satellites to locate someone?](/teamgeoloc/smartloc/-/wikis/Why%20do%20you%20need%204%20satellites%20to%20locate%20someone)