If an object is not in motion relative to a given frame of reference, it is said to be at rest, motionless, immobile, stationary, or to have a constant or time-invariant position with reference to its surroundings. Modern physics holds that, as there is no absolute frame of reference, Newton's concept of absolute motion cannot be determined. Everything in the universe can be considered to be in motion.
iF aN objeCt IS noT IN MOTion RELATive to a GIveN framE Of rEferencE it IS sAid to be at rEst motionless iMMoBile statioNaRy Or tO hAvE a CONStAnt oR timE-inVarIANt PoSITiOn wItH RefereNce tO iTs surRoundInGs mOdErN phYsIcs hOlDS that as tHere Is nO absolutE FRame of rEference nEwton's concEpt of AbsoLUte moTIon cAnNoT be DeTeRmined everYthInG in tHe univeRse CAN be consIDered tO be in moTion