On the other hand, it may just be that they're being very clever and simply trying to cover all the bases in case there is some great announcement or discovery about alien life.
亚利桑那州格雷厄姆 梵蒂冈先进技术望远镜 另一方面 这可能仅仅因为他们非常聪明 想覆盖所有领域