Shakespeare include the plot event in the act IV of Hamlet in which Horatio reads and reacts to Hamlet's letter about an encounter with pirates because of the reason to establish Horatio's steadfast loyalty to Hamlet. The answer in this question is establish Horatio's steadfast loyalty to Hamlet.
the author used the terms to help understand the trip of Juno by using detales of the trip. he/she explaine what safe mode was and why juno went into safe mode. she/he had also explaned what a fly-by was.