Winning connections from the owners and stable staff celebrate the victory of Harry Skelton riding Langer Dan to victory in The Coral Cup Handicap Hurdle during day two of the Cheltenham Festival 2023 at Cheltenham Racecourse on March 15, 2023 in Cheltenham, England. (Photo by Alan Crowhurst/Getty Images)

A spectator reacts after a Brazil Volleyball win during Paris 2024 Olympics in Women's Preliminary Round, Pool B Brazil vs Poland at South Paris Arena 1 in Paris, France on August 04, 2024. (Photo by Siphiwe Sibeko/Reuters)

Olympic gold medal-winning gymnast Hezly Rivera does a flip before throwing out a ceremonial first pitch before a baseball game between the Texas Rangers and the New York Yankees, Wednesday, September 4, 2024, in Arlington, Texas. (Photo by Jeffrey McWhorter/AP Photo)

Partner of Team USA's Dustin Johnson, Paulina Gretzky celebrates with champagne after winning over Team Europe during Sunday Singles Matches of the 43rd Ryder Cup at Whistling Straits on September 26, 2021 in Kohler, Wisconsin. (Photo by Jonathan Ernst/Reuters)

Spectators cheer after Medina Spirit, ridden by John Velazquez wins 147th Kentucky Derby at. Churchill Downs, in Louisville, Kentucky, U.S. May 1, 2021. (Photo by Bryan Woolston/Reuters)

Poland's Piotr Lisek celebrates after winning in the Men's pole vault during the IAAF Diamond League competition on July 12, 2019 in Monaco. (Photo by Eric Gaillard/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.

A woman walks past a caricature of Britain's Foreign Secretary Boris Johnson in east London, Britain November 18, 2016. (Photo by Andrew Winning/Reuters)