环绕着蓝色马头的眼睛部位的蓝色光芒——与周围其它恒星——是一个由细尘埃组成的反射星云。
But the survey did find excessive arsenic content in local Wells, and Greenpeace warns that fine dust pollution might become a problem when the snow has gone.但是调查确实发现,当地井水中砷的含量增加,而且绿色和平警告说,当积雪消融以后,粉尘污染也许会带来难题。