Can a galaxy die

Answer 1

yes a galaxy can die

one way a galaxy can die if another galaxy collides with a smaller galaxy even though the result is a larger galaxy the smaller galaxy died because it no longer exzites

a galaxy is a huge cluster of stars. even though in a Large Galaxy such as a spiral with enough gas to form new stars, when a star dies out, the energy collides with the gas to form new stars.

But in a galaxy that is small and dim such as eliptical galaxies with dim low solar mass stars it would not have enough energy to form a new stars because the gas is far apart and not enough to form new stars. so if all of the stars die out there would be no new stars get formed all that would be left are dense cores called white dwarfs,black holes and neutron stars and some dust. there would almost be no light generated by the galaxy.

but not all galaxies die out

(FOUND OUT FROM AN ASTROMNER)

Answer 2

Yes, a galaxy can "die" in the sense that it exhausts its supply of gas and dust, which are needed to form new stars. As stars age and die, they stop generating the energy needed to keep the galaxy alive. Eventually, the galaxy will fade away and become a "dead" collection of old stars.