... The Big Corona . ... Seeing the corona first-hand during a total solar eclipse is best. ... Eclipse over Chongqing, China . ... The daytime sky grew dark, the temperature dropped, and lights came on as Chongqing, China, was plunged into the Moon's shadow during the July 22nd total solar eclipse. ... The Lagoon Nebula in Gas, Dust, and Stars . ... The Moon's silhouette surrounded by a glistening solar corona hangs above the Jiayuguan Fort along the western edge of the Great Wall of China. ... July . ...