 The X Prize Cup offers monetary rewards and organizational support to the community of aerospace professionals—and by staging "Earth's great space exposition".The X Prize was modeled after many prizes from the early 20th century that helped prod the development of air flight, including most notably the $25,000 Orteig Prize that spurred Charles Lindbergh to make his solo flight across the Atlantic Ocean.NASA is developing similar prize programs called Centennial Challenges to generate innovative solutions to space technology problems.