Multiple Choice
Evidence for dark matter surrounding massive galactic clusters comes from what observation?
A) Huge galactic jets that contain large quantities of dark matter.
B) Motions of individual galaxies toward an invisible gravitational source.
C) Colliding neutron stars,with the collision energy creating dark matter.
D) Arcs caused by a gravitational deflection of light.
Correct Answer:
Verified
Correct Answer:
Verified
Q2: The largest,brightest galaxies in the Local Group
Q3: Which of the following statements about galaxies
Q4: High density regions in galactic clusters tend
Q5: Evidence for invisible matter between galaxies in
Q6: Low density regions between clusters tend to
Q8: Which of the following statements about the
Q9: The Coma cluster is<br>A)Poor and regular<br>B)Rich and
Q10: The Local Group is<br>A)A group of about
Q11: A rich cluster of galaxies contains about
Q12: What type of galaxy is frequently found