Multimedia Gallery
- Media Type: Photograph
Intense solar activity causes material to erupt from the Sun.
Solar activity can interfere with satellite signals.
Soviet cosmonauts used this device on their Soyuz spacecraft to supplement the ground-based navigation system.
Staff Sgt. Derek Howard, 816th Expeditionary Airlift Squadron, watches cargo bundles delivered by the Joint Precision Air Drop System (JPADS) to a drop zone in Afghanistan.
The successful operation of a satellite navigation system requires around-the-clock monitoring of the satellites’ health and the periodic replacement of older satellites.
The increasing reliance on navigation satellites for military and commercial activities makes them a tempting target for an enemy.
Preparation of GOES spacecraft launched during the 1970s and 1980s.
Charlie Buhler (left), Al Jacoby (middle), and
Roy Harding (right) of NRL install thermal blankets on the NTS-2 qualification model.
Smithsonian scientist with a vehicle equipped with a Transit land navigation system.