An Indian one-horned rhinoceros grazes on a dry wetland at the Pobitora Wildlife Sanctuary on the southern bank of the Brahmaputra River in Morigaon district of India's Assam state on April 4, 2025. (Photo by Biju Boro/AFP Photo)

A competitor in the carting category of the Henrik Sečnik dog mushing race in Hraše, Slovenia on April 8, 2024. Over 100 dogs and their owners from Slovenia and abroad competed in the 10th edition of this international race. (Photo by Luka Dakskobler/SOPA Images/Rex Features/Shutterstock)

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)

“Red Land: Sunset Cloud Village is one of the most picturesque places in Red Land, China. As its name indicates, it's best to see before sunset. The reddish brown soil turns redder after rainfall and after farmers plow the land”. (Photo and comment by Peng Jiang/National Geographic Photo Contest via The Atlantic)

Crowds look on as the super moon rises behind the Fremantle War Memorial at Monument Hill on November 14, 2016 in Fremantle, Australia. A super moon occurs when a full moon passes closes to earth than usual, with the November 14th moon expected to be closer than it has been in over 70 years. (Photo by Paul Kane/Getty Images)

A wild elephant that strayed into the town moves through the streets as people follow at Siliguri in West Bengal state, India, Wednesday, February 10, 2016. The elephant had wandered from the Baikunthapur forest on Wednesday, crossing roads and a small river before entering the town. The panicked elephant ran amok, trampling parked cars and motorbikes before it was tranquilized. (Photo by 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.

A woman surveys the damage after the earthquake on March 17, 2011 in Kensennuma, Japan. (Photo by Chris McGrath/Getty Images)