Hubble's law

HOW IT IS BUILT The methods behind it Gravitational wave Cosmology Gravitational lensing Quasar WHAT IT CAN DO Its core abilities — — — — WHERE IT IS USED Fast radio burst · Accelerating expa… Selection bias · Dispersion (optic… HL learns · reasons · acts
How it's built
What it can do
Where it's used

Hubble's law states that galaxies in the universe are moving away from us, and the farther away they are, the faster they're receding. Edwin Hubble discovered this relationship in the 1920s by observing that light from distant galaxies was shifted toward the red end of the spectrum—a phenomenon called redshift—i…