My infopoetry is human space travel. The metaphor is FIREWORKS. One firework represents a space traveller in that mission. The colour of the fireworks symbolizes the colour of the national flag of the space traveller after the fireworks bloom, the darkness will be lighted up, symbolizing that every exploration of human beings will know more about space.
Metaphor used:
One launch represents a mission. One firework represents a space traveller in that mission. The colour of the fireworks symbolizes the colour of the national flag of the space traveller. The speed of the fireworks and the time it stays represent the length of the space travel. The dark screen symbolizes the unknown universe, and there is a faint light at the bottom to symbolize earth. After the fireworks bloom, the darkness will be lighted up, symbolizing that every exploration of human beings will know more about space. And those people died in space will stay on screen and became a star.
Source:
https://en.wikipedia.org/wiki/List_of_astronauts_by_first_flight