I do wonder if space-time curvature can be applied to artificial satellites .... I think yes because that could be the reason why they are revolving around earth. Doubt:But what happens if they gain velocity more than the escape velocity. I could be conceptually wrong but if the above theory can be applied here satellite should revolve around the sun just like planets...... but don't know if it is true... If somebody knows the answer plz do post a reply.