How was it that two people, right next to each other, given the rarest of perspectives, could draw two totally opposite conclusions? When Joan looked back at the Earth, she was overwhelmed with her own life’s meaning—and the fact that the only meaning it could have was the meaning she gave it. Joan studied the thin blue, hazy circle that surrounded the Earth. The atmosphere was so delicate, nearly inconsequential. But it was the very thing keeping everyone she loved alive.
