What is the main idea of the passage?
Liam had always been fascinated by space. Every night, he would gaze at the stars, wondering about the planets and galaxies far beyond Earth. One evening, his father brought home a telescope. Liam could hardly contain his excitement as he set it up on their back porch. As he peered through the lens, he saw the glowing craters of the moon. His dream of becoming an astronaut seemed more real than ever.