ABSTRACT
Introduction Several years ago, the scientists at NASA used pictures from the Hubble telescope to confirm a theory they had had for years: that everything in the universe-at an atomic level-is expanding or moving away from everything else, at an everincreasing rate. They theorized that a mysterious energy exists in the universe that creates this expansion. Some think 80 or 90 percent of the universe is made up of this matter. They have given it the name “dark energy.” The pictures from the Hubble allowed scientists to prove this mysterious dark energy does exist.1
