Old Faithful Meets Hale-Bopp.

As Comet Hale-Bopp leaves our Northern Skies, it provides us with yet another burst of joy. On May 11th the fading comet was photographed behind the famous “ Old Faithful ” water geyser of Yellowstone National Park , Wyoming, USA, Planet Earth. Perhaps more familiar to Earth Dwellers than the dark geysers on Neptune 's moon Triton , the gas geysers on Jupiter 's moon Io , and the dirty water geysers hypothesized on Jupiter's moon Europa , Earth 's Old Faithful is also reliable - every 60-80 minutes it gushes a plume of water and steam high into the air. Comet Hale-Bopp will continue to be visible to observers in the Southern Hemisphere as it moves away from the Sun towards the outer Solar System.