Astronomers and cosmologists and physicists think that there is something called dark matter in the universe, which makes up 23 percent of the universe, and something called dark energy, which permeates the fabric of space-time, that makes up another 73 percent.
Astrónomos, cosmólogos e físicos pensam que existe algo chamado matéria escura no universo, que perfaz 23% do universo, e algo chamado energia escura, que atravessa o tecido do espaço-tempo, que perfaz outros 73%.