The Duchess of Cambridge pulls a pint with the Duke of Cambridge during their visit to Belfast Empire Hall for an informal party to celebrate inspirational young people who are making a real difference in Northern Ireland as part of their two day visit to Northern Ireland on February 27, 2019. (Photo by Aaron Chown/PA Wire Press Association)

Supporters of presidential candidate Gustavo Petro, with the Historical Pact coalition, celebrate after his candidate won a presidential runoff in Bogota, Colombia, Sunday, June 19, 2022. (Photo by Fernando Vergara/AP Photo)

A tern chick takes its first steps in the first decade of June 2024 at Nickerson Beach, New York, a common nesting location. (Photo by Suraj Ramamurthy/Solent News)

Models pose during the Macgraw presentation show during Afterpay Australian Fashion Week 2023 on May 18, 2023 in Sydney, Australia. (Photo by James Gourley/Getty Images for AAFW)

During Madrid's pride week, participants compete during the annual high heel race in Madrid, Spain, Thursday, July 29, 2023. Competitors must wear shoes with a heel of a minimum of 15 centimetres (5.9 inches). (Photo by Bernat Armangue/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.

Members of the police forces of Republic of Srpska march during a parade marking the 30th anniversary of the Republic of Srpska in Banja Luka, northern Bosnia, Sunday, January 9, 2022. This week Bosnian Serb political leader Milorad Dodik was slapped with new U.S. sanctions for alleged corruption. Dodik maintains the West is punishing him for championing the rights of ethnic Serbs in Bosnia – a dysfunctional country of 3.3 million that's never truly recovered from a fratricidal war in the 1990s that became a byname for ethnic cleansing and genocide. (Photo by Radivoje Pavicic/AP Photo)

An Asian elephant called “Plai Deaw” goes for a walk on a mountain road in Nakhon Nayok, Thailand on July 11, 2022. The bull has become well known in the area for his taste for venturing out from the deep forest and emerging among cars and village homes. Thailand has an estimated 2,000 Asian elephants living in the wild but there is often conflict when they come into contact with humans on roads and in villages. A similar number of elephants are kept captive where they work in zoos and are hired out for religious festivals and weddings. (Photo by Mongkol Pitakmoo/ViralPress)