Hubble found your truth:
by Scott Edgar
Expanding faster, faster
Redshift was the key.
Edwin Hubble used redshift (‘a shift in the light a galaxy emits toward the red end of the visible light spectrum’) to measure the velocity of galaxies and it was thereby determined that the universe is expanding at an ever increasing rate.
Further reading:
‘Hubble’s Law’, Wikipedia article: https://en.wikipedia.org/wiki/Hubbles_law
Author bio:
I am a lawyer by trade and poet by passion with a conceptual interest in physics and astronomy. I try to get lost in the deserts of the southwestern United States as often as I can. You can follow Scott on Instagram @poetdelayed.