Actually, that’s untrue. Consider for example, any exploratory craft that uses gravitational slingshots to build up speed. The Cassini spacecraft did 2 gravity assists around Venus and one around the Earth. If they used a stationary Earth, such a trajectory would have been impossible to calculate.
Buffalo, please you’re doing a dis-service to Catholics by posting information that is consistently demonstrably false, both in terms of the mistaken information you disperse, and in terms of the impressions you may create of Catholics. Please stop, go to your local college and take some classes in astronomy and physics.
NASA Use the Heliocentric System for its Probes and Satellites?
In reality, NASA will use whatever system is more convenient, the heliocentric or the geocentric, since NASA’s orbital mechanics know that both models are equivalent, mathematically and geometrically. If they are sending probes near the sun, they will probably use a heliocentric model, since it is easier to make calculations when one considers the sun as fixed in space with the planets moving around it. If they are sending up satellites near the Earth, however, they will use a geocentric model, or what is known in the industry as a “fixed-Earth coordinate system.” This is because it is much easier to calculate and chart the movements of satellites circling the Earth if the Earth is understood as stationary in space. This fact is easily proven from the space agency’s own documentation. For example, in a letter written to the
National Oceanic and Atmospheric Administration (NOAA) making the following inquiry: “Is the present movement of GOES [Geostationary Satellite] planned and executed on the basis of a fixed earth or a rotating earth?” the answer returned by the department head of GOES/POLAR Navigation, Office of Satellite Operations at the NOAA was very simple: “Fixed earth.”[1]
At other times, NASA tries to give the impression to a gullible public that only the heliocentric model will work. Through email correspondence in October 2005, NASA representatives personally invited this author to their on-line
Question and Answer forum.[2] A few weeks prior to the invitation, the same NASA representatives had answered a question on their forum from another person regarding whether NASA’s probes could be sent into space and tracked using the geocentric system rather than the heliocentric. The NASA representatives answered in the negative, stating: “If the universe were geocentric, all of our calculations for space probe trajectories would be wrong.” The person who asked the question then sent NASA’s answer to this author as proof for the heliocentric system. Accepting NASA’s invitation, I then sent a formal question to the NASA website asking them to show proof why a geocentric system would not work. After six weeks of not receiving an answer, I contacted the representatives by private email and asked if they were planning to answer the question. They wrote back to me and stated that they did not plan to answer it. After I tried to convince them that, since in this public forum they had, by their initial assertions against geocentric navigation, already committed themselves, and thus had an obligation to the public to defend their position, they still refused to answer. As a rejoinder, I told them that I would be including the entire communication between them and myself in this present book. The NASA representatives then demanded that their names be withheld, stating:
We do not give you permission to quote us or use our names in your book or on your website. Although we work at NASA centers, we are not NASA employees and for us to be presented in your work as official representatives of NASA would be inappropriate and misleading.