What is an example of situation irony in the movie October sky?

In "October Sky," a notable instance of situational irony occurs when Homer Hickam, who initially struggles to gain his father's approval for his passion for rocketry, ultimately wins a scholarship to NASA. This contrasts sharply with his father's expectations for him to follow in his footsteps as a coal miner, highlighting the unexpected turn of events where Homer's pursuit of his dreams leads to success in a field entirely different from his father's. The irony lies in how Homer’s achievements in science defy the limitations imposed by his father's traditional values.