What observational evidence strongly verifies the expansion model over static hypotheses like 'Tired Light'?

Answer

The temporal stretching of transient events (time dilation)

The fact that the duration of events like supernovae light curves is stretched by the exact same factor as the light's wavelength provides direct confirmation of an expanding universe model, which static models fail to explain.

What observational evidence strongly verifies the expansion model over static hypotheses like 'Tired Light'?

#Videos

Red shift | Astrophysics | Physics | FuseSchool - YouTube

universecosmologyexpansionredshift