In other words, the farther they are, the faster they move away from the Earth.
v = H d
where
v is the speed at which the galaxy is receding,
d - distance to the galaxy,
H is the Hubble constant,
H = 22 (km/s) / (million light-years)
v is the speed at which the galaxy is receding,
d - distance to the galaxy,
H is the Hubble constant,
H = 22 (km/s) / (million light-years)