The findings will appear in the Astrophysical Journal Letters. 这一发现将会发表在天体物理学的日志中。
In the United States, the Smithsonian Astrophysical Observatory and the Mount Wilson Observatory observed a decrease in atmospheric transparency that lasted for several months. 在美国，史密夫宁天体物理学的观测站同威尔逊山观测站观察查出，最后几个月，大气透明度持续减退。
