Geos is Greek for 'Earth,' and synchronous means "going on at the same rate and exactly together." Thus, when a satellite is in geosynchronous orbit it rounds the Earth once a day, matching the Earth's rotation period. For a satellite to be able to accomplish this task in just one sidereal day, (364/365) x 24 hours = 86,164.1 seconds, then it must be placed approximately 35,786 kilometers Geosynchronous Orbit [Courtesy of NASA] (19,323 nautical miles or 22,241 statute miles) above the surface of the Earth. We can only calculate such a height using formulas for our space shuttles have never reached such an altitude. Could this be a possibility for ISS? No one is sure yet. Although there is currently many NASA satellites and private owned ones in geosynchronous orbit, we are still dealing with a much larger and extensive space station. In addition to getting ISS at such a height there also has to be a way so that it can stay over the same spot on earth because a geostationary satellite it has to be directly above the equator. Otherwise, from Earth the satellite would appear to move in a north-south line every day.