What does it mean if a galaxy gives off light that has been shifted toward the red end of the electromagnetic spectrum?

Redshift and blueshift describe how light shifts toward shorter or longer wavelengths as objects in space (such as stars or galaxies) move closer or farther away from us. ... When an object moves away from us, the light is shifted to the red end of the spectrum, as its wavelengths get longer.

Explanation:

that means that most of the stars are cooler than most stars, it could be because there are lots of stars emitting radiation or there are a whole lot of star formation, sometimes it could be because most of the stars are red giants and give off a lower light frequency.

Explanation:

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the answer is c.) there is a warm front in region a and a stationary front in region b.