Answer: It tells readers there is something important happening on that asteroid.
In general you want to be a bit more concise in forming a thesis statement. Usually you should shoot for between 1 and 2 sentences summarizing your argument in a concise way so that it is easily understandable to the reader. I would take what you have written and look for your main argument and try and put that in 1 to 2 sentences.
It’s A or B, but I would probably go with B
Answer:
the answer is sequential.