Issue 2: Unstable systems, noise Astronomical observations are different from those in other scientific fields in that scientists can't just bring the object of their research into the controlled environment of a laboratory for analysis. Instead, they must use telescopes to make remote observations, recording whatever images or signals they can get.
難題 2：系統不穩及雜訊干擾天文觀測與一般科學研究不同，學者無法直接把想研究的物體帶回實驗室，在精密控制的環境中進行分析，而是只能用望遠鏡紀錄下遠端觀測的影像或訊號。