Question

question 15
2 pts
based on the best scientific data and models, astronomers now think that the universe is:
open, expanding, and accelerating
open, expanding, but deccelerating
closed, expanding, and accelerating.
flat, expanding, and decelerating
flat, expanding, but accelerating

Explanation:

Modern astronomical data (e.g., from cosmic microwave background and supernova observations) shows the Universe is flat (critical density), expanding, and its expansion is accelerating due to dark energy.

Answer:

flat, expanding, but accelerating