Multiple Choice
Distant galaxies we can see today with a redshift of z 6 emitted their light when the universe was:
A) five times smaller than it is today
B) six times smaller than it is today
C) seven times smaller than it is today
D) eight times smaller than it is today
E) the same size as it is today
Correct Answer:

Verified
Correct Answer:
Verified
Q50: Galaxy peculiar velocities are typically about 300
Q51: The apparent recessional velocities of galaxies at
Q52: What is a standard candle, and why
Q53: Name two predictions of the standard Big
Q54: Which of the following is NOT a
Q56: The spectra of most galaxies tell us
Q57: What do astronomers mean when they say
Q59: You observe a distant quasar in which
Q60: The only chemical elements that formed as
Q81: If you found a galaxy with