2007-05-05 19:10:13 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Other - Car Makes
In physics you learn that it doesn't take energy to move in space. What took energy is to get it there in the first place. While in space, the only force acting on the satellite is the Earth's gravity.
2007-05-05 19:19:33 · answer #1 · answered by BobbyD 4 · 0⤊ 0⤋
If you mean artificial satellites.. like the ones we use for communication -- then they correct their orbit and or move to new orbital locations (rarely) using a variety of methods -- most commonly using some sort of high pressure gas released through jets.. obviously there is a finite amount of gas that they are sent into orbit with, and it eventually runs out, before that happens the satellite set to enter an orbit where it can safely burn up, they are usually replaced by another satellite at the same orbital location before they are 'moved' so there is no interruption.
If you mean how do they orbit... gravity -- they are falling -- constantly -- but ever so slowly... until on occasion their orbits are either corrected, or they are decommissioned and allowed to burn up in earths atmosphere. Doesn't matter if we are talking geo-synchronous (stationary 'apparent' to the earth') or not.
2007-05-05 19:19:41 · answer #2 · answered by William Shatner 2 · 0⤊ 0⤋
Yes William said it all and correctley.
2007-05-09 05:23:00 · answer #3 · answered by Holmes 3 · 0⤊ 0⤋
gravity. it is actually "falling" perpetually in a circle / ellipse
2007-05-05 19:18:40 · answer #4 · answered by ambientdiscord 5 · 1⤊ 0⤋
i think it is moving with help gravity.
2007-05-06 00:41:26 · answer #5 · answered by Udaya 3 · 0⤊ 0⤋