The layer of the sun can only be seen during a solar eclipse is corona
Answer: Purpose
Explanation: If you have no purpose or inclination to have a hypothesis, you wouldn't have a hypothesis in the first place. Plus, it can't be experiment because there isn't anything to experiment without a hypothesis. The analysis is, well analyzing your data to see if your hypothesis is realistic. Definitely, not conclusion. <span />
This is more of an answer based off of knowledge than fact, but i believe its that "New ideas often develop from unsuccessful experimentation."