The universe's galaxies have evolved since what point in time?(1 point)
Responses
800 million years ago, when gas concentrations were optimal for galaxy formation
13.8 billion years ago, right after the universe first formed
approximately 50 million years ago, after initial clumps of material were formed
23.4 billion years ago, when the universe first formed
1 answer
13.8 billion years ago, right after the universe first formed