Redshift is a displacement of red light on the electromagnetic spectrum as a celestial object

Question

A.) moves toward earth
B.) spins in a clockwise motion
C.) moves away from Earth
D.) forms a supernova

Answer 1

C.) moves away from Earth

Redshift refers to the phenomenon where light from an object that is moving away from the observer is shifted to longer wavelengths, typically toward the red end of the spectrum.