Question

Absorption lines from a distant object are shifted toward the red end of the spectrum when compared to a stationary lab spectrum. This distant object must be...

Answer 1

moving away from us.

Step-by-step explanation:

Red-shift and speed

It is a result of the space between the Earth and the galaxies expanding. This expansion stretches out the light waves during their journey to us, shifting them towards the red end of the spectrum. The more red-shifted the light from a galaxy is, the faster the galaxy is moving away from Earth.