People perform acroyoga style exercices at South Pointe in Miami Beach, Florida, on February 8, 2023. (Photo by Chandan Khanna/AFP Photo)

England's Marcus Smith reacts as he scores a try during the Six Nations rugby union international match between France and England at Groupama Stadium, Lyon, France, Saturday, March 16, 2024. (Photo by Laurent Cipriani/AP Photo)

Hippo keeper Atthapon Nundee, 31, takes pictures of a two-month-old female pygmy hippo named “Moo Deng” who has recently become a viral internet sensation, at Khao Kheow Open Zoo in Chonburi province, Thailand, on September 16, 2024. (Photo by Athit Perawongmetha/Reuters)

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.

Children dressed up as Hindu Lord Krishna pose during Janmashtami festival celebrations marking the birth anniversary of Krishna in Agartala, India August 24, 2016. (Photo by Jayanta Dey/Reuters)

The Invasion. A quiet street in Macau. Modernization around is quickly changing the city, as documented by Paul Tsui. (Photo by Paul Tsui/National Geographic Travel Photographer of the Year Contest)

A worker cleans the statue of Yuri Gagarin, the first person who flew to space, ahead of Cosmonautics Day celebrated on April 12, in Moscow, Russia, Wednesday April 10, 2019. Cosmonautics Day marks when Soviet cosmonaut Yuri Gagarin became the first man to fly in space, in 1961, orbiting the earth once before making a safe landing. (Photo by Maxim Marmur/AP Photo)

Mercedes' team members practice a pit stop with the car of Italian driver Andrea Kimi Antonelli ahead of the Formula One Chinese Grand Prix at the Shanghai International Circuit in Shanghai on March 20, 2025. (Photo by Héctor Retamal/AFP Photo)