The best action to take to analyze the topic would be:
I would use free writing to narrow or limit the scope of the topic.
Free writing allows you to explore your thoughts and ideas freely, which can help you identify specific areas of interest within the broader topic of space exploration and significant findings. This way, you can focus on particular events, missions, or technological advancements that occurred during the twentieth and twenty-first centuries, making your research paper more manageable and focused.