Which type of galaxy is observed to contain mostly older stars?

Question

Quizplus · Accepted Answer

Elliptical galaxies are observed to contain mostly older stars, as they formed earlier in the universe's history through mergers and accretion of other smaller galaxies. Spiral galaxies, on the other hand, contain a mix of both old and young stars as they continue to form new stars through ongoing star formation. Dwarf elliptical galaxies are also primarily made up of old stars, but they are much smaller and less massive than their larger counterparts. Irregular galaxies have no specific shape and can contain a mix of old and young stars depending on their history of star formation.

Which Type of Galaxy Is Observed to Contain Mostly Older