... Comet McNaught Over Chile . ... After making quite a show in the northern hemisphere in early January, the comet moved south and developed a long and unusual dust tail that dazzled southern hemisphere observers. In this image, Comet McNaught was captured one year ago above Chile. ... Thor s Emerald Helmet . ... In fact, the helmet is actually.. ... The Cocoon Nebula from CFHT . ... What creates the colors of the Cocoon Nebula? ... Hurricane Ivan from the Space Station . ... Polaris Dust Nebula . ...