Situational irony
The aliens are sure that no existing force can destroy their power structure in Ganymede. However, the UN uses a scientific approach to dismantle the alien structure. At first, the UN sends its scientists, led by Harold, to study the alien power structure in outer space. After discovering the secrets of the alien structure, the scientists use invisible chemicals to destroy it. Therefore, there is situational irony because the aliens are shocked when they learn that the UN has successfully destroyed their power structure.
The peacekeeping mission
The primary role of the UN peacekeeping mission in Ganymede is to protect citizens, especially women, and children, and account for any missing person. Paradoxically, the news from Ganymede is disturbing because the officers in charge cannot account for the mysterious disappearance of the children. Therefore, the UN peacekeepers are doing the opposite of what is expected of them.
Dramatic irony
The reader knows the Martian Army has set a signal trap in space to destroy the scientists heading to Ganymede. However, the scientists heading to outer space are unaware of the looming danger. While in transit, the crew is attacked and faces fierce resistance from the Martian Army.
