American rapper Coi Leray attends the 2024 People's Choice Awards at Barker Hangar on February 18, 2024 in Santa Monica, California. (Photo by Mario Anzuoni/Reuters)

A kite is flown at a park during the ancient annual public picnic day, called Sizdeh Bedar, on the 13th and last day of Nowruz, the Iranian New Year holiday, in Tehran, Iran, Wednesday, April 2, 2025. (Photo by Vahid Salemi/AP Photo)

Zoi Karangelou of Greece compete in the Women's Solo Technical final on day one of World Aquatics Artistic Swimming World Cup Super Final 2025 at Xi'an Olympic Sports Centre on June 13, 2025 in Xi An, China. (Photo by Lintao Zhang/Getty Images)

The geese in March, Cambs, UK on August 25, 2025. The family of around 20 white waterfowl have been a fixture in March, Cambs, for years and have made their mark by regularly waddling to the high street. (Photo by South West News Service)

Performers dressed with flower pots on their heads perform during a media preview of the Pacific National Exhibition Fair in Vancouver, British Columbia, Canada, August 15, 2024. Marking its 114th year, the Pacific National Exhibition (PNE) Fair, one of the longest running events in Canada, runs from Aug. 17 to Sept. 2 here this year. (Photo by Xinhua News Agency/Rex Features/Shutterstock)

High-wire artist Kane Petersen successfully walks a tightrope 300 metres above the ground at Eureka Skydeck on September 16, 2015 in Melbourne, Australia. The walk was the highest tightrope walk ever attempted in the Southern Hemisphere. The stunt is to mark the arrival of the film “The Walk” to Australian cinemas in October. The stunt saw Kane mimic the film's French high-wire artist Philippe Petit, who successfully walked between the twin towers of the World Trade Center in 1974. (Photo by Scott Barbour/Getty Images)

Fighters of the pro-government Popular Resistance Committees militia carry a cannon as they transport it in parts to Yemen's southwestern war-torn city of Taiz December 26, 2015. (Photo by Reuters/Stringer)

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.