Lindsay Heimbach goes airborne while sledding down a hill on Mt. Lemmon December 27, 2008. (Photo by James Gregg/Arizona Daily Star)

This artist's rendering illustrates the evaporation of HD 189733b's atmosphere in response to a powerful eruption from its host star. NASA's Hubble Space Telescope detected the escaping gases and NASA's Swift satellite caught the stellar flare. (Credit: NASA's Goddard Space Flight Center)

A Sydney Aquarium diver uses a vacuum to clean the gravel in the Great Barrier Reef tank as a Ray Shark swims by September 26, 2006 in Sydney, Australia. The Aquarium is undergoing its annual spring clean to prepare for the school holidays using vacuums, along with sea creatures like Sea Cucumbers, Sea Urchins, Cleaner Wrasse Fish and Sea Stars to help complete the job. (Photo by Ian Waldie/Getty Images)

“Photographer Max Ellis has become an internet star – after posting wacky photos of squirrels in hilarious situations, from being sent flying through the air in fear by a Buckaroo to lifting weights. Max places his self-made creations in his garden in Teddington, London, and then painstakingly waits hours – and sometimes days – for his subjects to get into the exact position to capture his shot. In another scene an inquisitive squirrel is sent backwards in surprise as a bottle of champagne pops its cork and in others a squirrel appears to saw his friend in half just like the famous magic trick”. – Caters News

“Supanova Pop Culture Expo (Supanova) is a fan convention focusing on science fiction and fantasy film and TV, comic books, anime, gaming and collectables. It is held annually in the Australian cities of Sydney, Brisbane, Perth and Melbourne”. – Wikipedia

Photo: Terminator and Wolverine pose for photos during the National Cosplay Championships as part of the Supanova Pop Culture Expo at the Dome at Olympic Park on June 19, 2010 in Sydney, Australia. Cosplayers and comic book and sci-fi fans from across the state gathered to meet like-minded folk and attend guest panels with the stars of some of the popular television shows and publications of the genre. (Photo by Sergio Dionisio/Getty Images)

In this artist's impression supplied by the ESO (European Southern Observatory) on April 25, 2007, the planetary system around the red dwarf, Gliese 581, is pictured showing what astronomers believe is the most earth like planet found outside our solar system to date. Using the ESO 3.6-m telescope in Chile, astronomers have uncovered the planet which could have water running on its surface. The planet orbits the faint star Gliese 581, which is 20.5 light-years away in the constellation Libra. (Photo by ESO via Getty Images)