accelerating expansion of the Universe
sopâneš-e šetâbande-ye giti
Fr.: expansion accélérée de l'Univers
expansion of the Universe
sopâneš-e giti (#)
Fr.: expansion de l'Univers
The receding of galaxies from one another at a speed proportional to their separation, as inferred by Edwin Hubble from the observed Doppler shift of distant galaxies. → Hubble constant describes the local rate of the expansion.