What distance method is used to determine the distance to the most distant galaxies?
A)radar echo
B)supernova observations
C)the period-luminosity relationship of variable stars
D)parallax

Question

Quizplus · Accepted Answer

Supernova observations, specifically Type Ia supernovae, are used to determine distances to the most distant galaxies because they have a consistent peak brightness, allowing astronomers to calculate their distance based on their observed brightness.

What Distance Method Is Used to Determine the Distance to the Most