Oct 21, 2012 - This Pin was discovered by Anna Lacy. Discover (and save!) your own Pins on Pinterest. ... <看更多>

The comet of the century shot from Hook Head lighthouse in Wexford using a 200mm lens. The ion tail is huge now. ... <看更多>

Halley's Comet as photographed May 13, 1910, by a wide-angle camera at Lowell Observatory, Flagstaff, Ariz., during the comet's last ... ... <看更多>