Scientists Say: Observable universe
Observable universe (noun, “ub-SERV-uh-bul YOO-nih-vers”) The observable universe is a huge bubble-shaped region of space around Earth. It contains all the matter and energy that we could, in theory, observe…
Observable universe (noun, “ub-SERV-uh-bul YOO-nih-vers”) The observable universe is a huge bubble-shaped region of space around Earth. It contains all the matter and energy that we could, in theory, observe…