Every time I come across a discussion of general or special relativity in school or around town, people are usually discussing the idea of moving at speeds that are close to the speed of light. This brought me to a slightly strange question regarding relativity: Well... two...three questions: We are, as a satelite around our sun, galaxy, and universe, moving quite quickly through space. Does this imply that we are currently more massive than we would be at some sort of absolute rest? Or is the mass of an object always gauged wiithin our own personal reference frame I.E. one moving at our own velocity with our own acceleration? Secondly: What would the implications be of having a negative speed? And thirdly: What would an object's attributes be if it were already (and had always been) traveling faster than light? I'm not trying to say it got there from any point slower than light. Let's just say it was created traveling at 1.5c m/s and ahs been that way since the beginning of time.