Physical Science

Objects accelerated to relativistic speeds do not necessarily live shorter or grow bigger; it depends on the particular characteristics and properties of the object in question. For example, if the object is composed of particles that are small enough to be affected by relativistic effects such as time dilation, then the object will effectively appear to last longer or "live" longer than other objects that are not travelling at such speeds. On the other hand, if the object is composed of larger objects, then there may be a space-time curvature effect which could result in the object becoming bigger or more massive as it accelerates to relativistic speeds. Furthermore, the accelerated object will experience its own frame of reference and may experience different lengths of time than objects that are not travelling at such speeds,and may appear larger or smaller depending on its perspective.