Question

multiple-choice question
vesto slipher found that the astronomical objects he
studied were
ed shifted\ meaning they were ______.

moving away from us

all moving towards a black hole

stationary in space

moving toward us

rewatch

Explanation:

In astronomy, redshift occurs when light from an object is stretched, indicating the object is moving away from the observer (us). Vesto Slipher's observations of redshifted astronomical objects showed they were receding. The other options (moving toward a black hole, stationary, moving toward us) contradict redshift's meaning (blueshift is for moving toward us).

Answer:

A. moving away from us