Quasars Typically Appear to Be

question 72

Multiple Choice

Quasars typically appear to be

• A) extremely massive objects in the Milky Way Galaxy, their spectra showing very high gravitational redshift.
• B) moving away from Earth at very high speeds, up to about 90% of the speed of light.
• C) moving across Earth's line of sight at very high speeds, as seen in time-lapse photographs.
• D) moving toward Earth at high speeds, as high as 90% of the speed of light.