R1E1D2S1H4I1F4T1S1
16 points
REDSHIFTS is validvalid
REDSHIFT, a displacement of the spectrum of a celestial body toward the longer wavelengths
REDSHIFT, the displacement of the light a receding object emits toward the red end of the spectrum
REDSHIFT, a displacement of the spectrum of a celestial body toward the longer wavelengths
REDSHIFT, the displacement of the light a receding object emits toward the red end of the spectrum