Diver Sven, still in disguise, cleans the aquarium glass after a Santa Claus visit to the fish at Sea Life Berlin on December 6, 2021. (Photo by Christoph Soeder/dpa)

Policemen guard Poland's Supreme Court as a protester lies on the pavement in Warsaw, Poland, on Thursday, April 22, 2021. A disputed disciplinary body within Poland's Supreme Court is examining a motion that could result in the arrest of a judge who has become a symbol of the fight for an independent judiciary. (Photo by Czarek Sokolowski/AP Photo)

A woman reacts to having leaves thrown on her, while taking a photo, in Central Park as leaves begin to change colors on October 26, 2022 in New York City. Leaves around parts of Central Park have begun changing colors while much of Long Island and Upstate New York have already peaked. (Photo by Alexi Rosenfeld/Getty Images)

Elsa, Dolly, Jeanie, Vince, Titch and Bailey savour seaside smells at Reculver Towers and Roman Fort, Kent, United Kingdom on February 23, 2021. The southeast of England will be warm again. (Photo by Liz Gregg/Triangle News)

A woman smokes marijuana during a Global March for Marijuana in Medellin, Colombia, May 5, 2018. The annual Global Marijuana March is taking place in over 100 cities across the world in an effort to raise awareness of the benefits of medical cannabis and to call for the legalization of marijuana. (Photo by Fredy Builes/Reuters)

British reality TV personality Scotty T (Scott Timlin) partied at the Aruba Nightlcub in Redcar, England last night, June 11, 2018 and fans couldn't wait to see his new Tattoo. Scotty just whipped down his kegs and showed anyone who asked, with a queue of 200 girls it was quite a night. One girl asking to kiss his bottom whilst most just wanted a glimpse of his new Stephen Bear Tattoo. (Photo by Blackburn/Backgrid)

People smoke marijuana in front of the Brandenburg Gate during the 'Smoke-In' event in Berlin, Germany, Monday, April 1, 2024. Starting 1 April, Germany has legalised cannabis for personal use. As per the new law, Adults aged 18 and over will be allowed to carry up to 25 grams of cannabis for their own consumption. (Photo by Ebrahim Noroozi/AP Photo)

The Royal Observatory just announced its Astronomy Photographer Of The Year 2013 winners. Australian photographer Mark Gee was chosen among a thousand amateur and professional photographers around the globe to win the top title. His work is part of an exhibition of the winning photographers, which opened on Sept. 19 at the Royal Observatory Greenwich. The Royal Observatory shared with us the winners and notable mentions of the competition. Their descriptions of the prizewinners can be found below the images.