Geostationary Satellitesstay at a fixed point above the earth. They orbit at an altitude of about 22,000 miles and are used for domestic communications. |
This picture shows a NASA experimental
communications spacecraft, the Advanced Communications Technology
Satellite (ACTS). NASA has been active in the development of the
communications satellites from the founding of the agency in 1958 to the
present day. NASA has launched several experimental satellites to develop
the technology needed for commercial applications.
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