- #1
question dude
- 80
- 0
My school textbook says that discovery of the 1a supernova was what led to the understanding that the universe expansion is accelerating
but doesn't hubble's equation already suggest that the universe would expand at an accelerating rate?
V = Hd (V = velocity, H = hubble's constant, d = distance from the observer)
a constant rate of expansion would be if the galaxies move away at constant velocity, but hubble's equation already shows than velocity would increase (so galaxies would accelerate) with increased distance moved, so I don't get why they didn't know the universe expansion was accelerating just from looking at hubble's equation
I know I'm missing something...
but doesn't hubble's equation already suggest that the universe would expand at an accelerating rate?
V = Hd (V = velocity, H = hubble's constant, d = distance from the observer)
a constant rate of expansion would be if the galaxies move away at constant velocity, but hubble's equation already shows than velocity would increase (so galaxies would accelerate) with increased distance moved, so I don't get why they didn't know the universe expansion was accelerating just from looking at hubble's equation
I know I'm missing something...