Which statement about the behavior of Universe geometries is correct?
A) Closed and open universes expand forever.
B) Closed universes expand and then contract.
C) Only flat universes expand forever.
D) Flat and open universes expand and then contract.
E) Only flat universes expand and then contract.

Question

Quizplus · Accepted Answer

Closed universes are characterized by their curvature that allows them to expand to a certain point before the gravitational forces cause them to contract, potentially leading to a big crunch scenario.

Which Statement About the Behavior of Universe Geometries Is Correct