Ronald Reagan's address on the Space Shuttle Challenger Disaster has a number of examples of figurative language.
At various times, Reagan employs repetition. Towards the start of the speech, he says:
But we've never lost an astronaut in flight. We've never had a tragedy like this.
His repetition of "we've never" emphasizes how tragic and unexpected this event is.
He also uses a specific type of repetition called anaphora:
They had a hunger to explore the universe and discover its truths. They wished to serve, and they did. They served all of us.
Anaphora is when a word or phrase is repeated at the start of sentences or clauses. Here, Reagan uses anaphora with the word "they." This is his way of highlighting that we should focus on the astronauts that lost their lives and continue to remember their achievements even though they are gone.
Towards the end, he assures the listeners that "we'll continue our quest in space." He utilizes a list and repeats the word "more" to emphasize that this is not the end for the space program. He does not want this disaster to stop the innovations and discoveries that have been made.
Reagan ties this current event to history, referencing the explorer Sir Francis Drake. He compares Drake to the astronauts, saying:
Their dedication was, like Drake's, complete.
In the final lines of the speech, Reagan quotes John Gillespie Magee:
We will never forget them, nor the last time we saw them, this morning, as they prepared for their journey and waved goodbye and "slipped the surly bonds of earth" to "touch the face of God."
This is from the poem High Flight, and this quote includes alliteration in repetition of the "s" sound ("slipped the surly").
Throughout the whole speech, Reagan also uses pathos, ethos, and logos to connect with his listeners.