Physics for IGCSE & O level - The Earth In Space (Section 12 - No. 41)
How are galaxies described in relation to an expanding universe?
They are expanding away from each other.
They are stationary in relation to each other.
They are contracting towards each other.
They are orbiting each other.
توضیح
Galaxies are moving away from each other, due to the expansion of the universe.