Book excerpt: In Clear Lake, Texas, a group of astronauts has begun training for the Challenger mission. Among them is a teacher named Christa McAuliffe, the woman chosen to be the first teacher in space. When Annie meets Christa, she is fascinated by her determination and courage. Following Christa's NASA journey through the news, Annie sees that Christa seems to be an ordinary person, like Annie herself, and yet Christa is reaching amazing heights-like flying on the space shuttle. Feeling so inspired, Annie is devastated when the shuttle launch turns to tragedy. But Annie must remember that Christa would have wanted her to keep reaching for her dreams, despite any obstacle.