Watch this short video to learn more about the universe as we see it today.
So how do we know about the size of the universe and structures found in it? Cosmology is the study of the origin and future of the universe. Data gathered by telescopes and satellites and computer models help cosmologists to study and understand the universe. The new discoveries help cosmologists not only understand our present day universe but also what the universe was like in the past and what it might be like in the future.