22. Most of the information we have
discovered about the distant
universe has come from
A: the Hubble Telescope.
B: the Apollo program.
C: space travel.
D: the International Space Station
(ISS).
23. The farthest object ever observed by
humans is a quasar that is
A: 12 billion miles away.
B: 4 billion kilometers away.
C: 12 billion light years away.
D: 10 million kilometers away.
24. A light year is
A: the distance between the Earth
and the sun.
B: the time it takes to travel to the
moon.
C: the distance light travels in one
Earth year.
D: 365 days.
25. It would take 32 years to travel to
the end of the universe in a space
ship.
A: True
B: False
26. You are looking into the night sky and notice
a particular star. You research the star and
find out it is 5,000 light years away. Which of
the following is true?
A: the star is 5,000 years old
B: the light you see from that star today
began its travel 5,000 years ago
C: the star will explode and die within 10
years from now
D: none of the above