Multiple Choice
When we look at an object that is 1,000 light- years away, we see it .
A) as it is right now, but it appears 1,000 times dimmer
B) as it was 1,000 years ago
C) looking just the same as our ancestors would have seen it 1,000 years ago
D) as it was 1,000 light- years ago
Correct Answer:
Verified
Correct Answer:
Verified
Q23: Light Travel Time: Because of the finite
Q24: One of the most fundamental discoveries about
Q25: On a cosmic calendar, in which the
Q28: The farthest bright galaxies that modern telescopes
Q29: You have taken a picture of a
Q30: Light travels at 300,000 km/sec. About how
Q31: On the 1- to- 10- billion scale,
Q32: Approximately how fast is a person located
Q79: Starting from the Big Bang,briefly explain how
Q90: Consider the following statement,and explain whether or