"You might expect gravity would slow it down, but it's just expanding faster and faster"

This quote by Saul Perlmutter is describing the growth of the universe. Deep space is continuously expanding, and this quote is recommending that the growth is not slowing down due to gravity. Rather, it is expanding quicker and faster. This is a surprising outcome, as one might expect gravity to have an impact on the expansion of deep space. Nevertheless, this is not the case. The growth of the universe is accelerating, and this is because of the mysterious force known as dark energy. Dark energy is a kind of energy that is believed to be responsible for the velocity of deep space's expansion. It is still not totally understood, however it is thought to be a home of space itself. This quote by Saul Perlmutter is a suggestion of the strange nature of the universe and the power of dark energy.