'This "colorful" effect is used to determine the enormous distances between Earth & faraway galaxies'
the redshift
MY GALAXY: This colorful effect is used to determine the enormous distances between Earth & faraway galaxies
This "colorful" effect is used to determine the enormous distances between Earth & faraway galaxies
This "colorful" effect is used to determine the enormous distances between Earth & faraway galaxies
MY GALAXY
the redshift
MY GALAXY