 In support of his hypothesis, Mr. Campbell reported that a blue and reddened Sun was reported in China as documented in 1983.Paul Simons, in an article entitled "Weather Secrets of Miracle at Fátima", stated that it is possible that some of the optical effects at Fátima may have been caused by a cloud of dust from the Sahara.Skeptical investigator Joe Nickell wrote that the "dancing sun" effects reported at Fátima were "a combination of factors, including optical effects and meteorological phenomena, such as the sun being seen through thin clouds, causing it to appear as a silver disc.