The traditional "top-down" hypothesis states that the galaxy formed
A)from a large spherical cloud of gas that was rotating very slowly.
B)from a large cloud of material that broke off a larger galaxy.
C)from material that had been ejected in the violent explosion of a dying galaxy.
D)as a result of mergers between several smaller groups of gas, dust, and stars.
E)as two massive galaxies collided.

Question

Quizplus · Accepted Answer

The traditional "top-down" hypothesis suggests that the galaxy formed from a large spherical cloud of gas that was rotating very slowly. Over time, this gas cloud collapsed under its own gravity, resulting in the formation of a disk shape with a bulge at its center which eventually became the galaxy we observe today.

The Traditional "Top-Down" Hypothesis States That the Galaxy Formed