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ASTRO 1 EXAM 4 NEWEST-2025/2026 ACTUAL EXAM
COMPLETE QUESTIONS AND 100%CORRECT
DETAILED ANSWERS //|ALREADY GRADED
A+UPDATED VERSION!
Based on information about the Milky Way and
Andromeda...
A: the collision starts at 8 billion years in the move and is
completed by 9 billion years
B: the collision stars at about 1 billion years in the move
and is completed by 3 billion years
C: the collision stars just after 5 billion years in the move
and is completed by 8 billion years
D: the collision stars just after 3 billion years in the move
and is complete a bit after 5 billion years
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E: never collide - ANSWER-D: the collision stars just after
3 billion years in the move and is complete a bit after 5
billion years
What kind of galaxies are the largest in our Universe?
A: spiral
B: irregular
C: elliptical - ANSWER-C: elliptical
The galaxies near Andromeda looked like:
A: an oval shaped haze
B: beautiful spiral patterns
C: stars
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D: clumpy, irregular structures - ANSWER-A: an oval
shaped haze
Whats true of irregular galaxies
A: they have spiral arms but are smaller than spiral
galaxies
B: the have regular smooth structures
C: they are usually larger than spiral galaxies
D: they have no defined shape or structure - ANSWER-D:
they have no defined shape or structure
What do spiral arms contain?
A: the hottest, newest stars
B: the coldest, newest stars
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C: the hottest, oldest stars
D: the coldest, oldest stars - ANSWER-A: the hottest,
newest stars
What type of stars does the bar contain?
A: old, cool stars that glow redder
B: young, cool stars that glow bluer
C: old, hot stars that glow bluer
D: old, cold stars that glow bluer - ANSWER-A: old, cool
stars that glow redder
What color are the star clusters in the spiral arms and
what does that mean?
A: red and means they are old
ASTRO 1 EXAM 4 NEWEST-2025/2026 ACTUAL EXAM
COMPLETE QUESTIONS AND 100%CORRECT
DETAILED ANSWERS //|ALREADY GRADED
A+UPDATED VERSION!
Based on information about the Milky Way and
Andromeda...
A: the collision starts at 8 billion years in the move and is
completed by 9 billion years
B: the collision stars at about 1 billion years in the move
and is completed by 3 billion years
C: the collision stars just after 5 billion years in the move
and is completed by 8 billion years
D: the collision stars just after 3 billion years in the move
and is complete a bit after 5 billion years
,2|Page
E: never collide - ANSWER-D: the collision stars just after
3 billion years in the move and is complete a bit after 5
billion years
What kind of galaxies are the largest in our Universe?
A: spiral
B: irregular
C: elliptical - ANSWER-C: elliptical
The galaxies near Andromeda looked like:
A: an oval shaped haze
B: beautiful spiral patterns
C: stars
,3|Page
D: clumpy, irregular structures - ANSWER-A: an oval
shaped haze
Whats true of irregular galaxies
A: they have spiral arms but are smaller than spiral
galaxies
B: the have regular smooth structures
C: they are usually larger than spiral galaxies
D: they have no defined shape or structure - ANSWER-D:
they have no defined shape or structure
What do spiral arms contain?
A: the hottest, newest stars
B: the coldest, newest stars
, 4|Page
C: the hottest, oldest stars
D: the coldest, oldest stars - ANSWER-A: the hottest,
newest stars
What type of stars does the bar contain?
A: old, cool stars that glow redder
B: young, cool stars that glow bluer
C: old, hot stars that glow bluer
D: old, cold stars that glow bluer - ANSWER-A: old, cool
stars that glow redder
What color are the star clusters in the spiral arms and
what does that mean?
A: red and means they are old
