Neil deGrasse Tyson, best-selling author of Astrophysics for People in a Hurry, illuminates the major rifts in our society—war, politics, religion, truth, beauty, gender, race, and tribalism—in a way that encourages a stronger sense of oneness among all of us. As he passionately defends the two sources of enlightenment—a cosmic viewpoint and the logic of science—Tyson offers a much-needed antidote to much of what divides us at a time when our political and cultural ideas feel more divergent than ever. After giving careful consideration to how a scientist sees the world and to how Earth appears from space,