French-British actress and singer Charlotte Gainsbourg arrives to attend a state dinner in honor of Britain's King Charles and Queen Camilla at the Chateau de Versailles (Versailles Palace) in Versailles, near Paris, on the first day of their State visit to France on September 20, 2023. (Photo by Benoit Tessier/Reuters)

Spain's Paula Badosa gives a thumbs up after falling on the court during her women's singles semi-final match against Belarus' Aryna Sabalenka on day twelve of the Australian Open tennis tournament in Melbourne on January 23, 2025. (Photo by David Gray/AFP Photo)

Guests attend the Haute Couture Spring-Summer 2024 collection show for Giorgio Armani Prive by designer Giorgio Armani in Paris, France, on January 23, 2024. (Photo by Benoit Tessier/Reuters)

Model Rachel Pizzolato poses with a dog during the “The Pet Gala” at GH on the Park in New York City on May 19, 2025. The Pet Gala by Anthony Rubio designs recreates outfits from the Met Gala for pets. (Photo by Timothy A. Clary/AFP 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)

Kaleen from Austria during the press meeting ahead of the concert Nordic Eurovision Party held at Berns in Stockholm, Sweden April 14, 2024. (Photo by Fredrik Sandberg/TT News Agency via AFP Photo)

Monae' Nichols of the United States competes in the preliminary round of the long jump competition during ATHLOS NYC25 on October 09, 2025 at Times Square in New York City. (Photo by Emilee Chinn/Athlos/Getty Images)

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.