An Iranian woman wearing a face mask walks on a street in Tehran, Iran, 19 October 2020. According to the Iranian Health ministry, Iran reported its highest daily COVID-19 death toll of 337 and 4,251 new infections in past 24 hours as it appears that Iran is in a third wave of COVID-19 outbreak. (Photo by Abedin Taherkenareh/EPA/EFE)

Residents wearing masks rest in the shade near a graffiti of a dragon, Friday, May 27, 2022, in Beijing. (Photo by Ng Han Guan/AP Photo)

Construction workers walk past a mural in Phnom Penh on September 6, 2022. (Photo by Tang Chhin Sothy/AFP Photo)

An artist draws a mural on a wall during a wall painting competition in Amritsar on February 25, 2023. (Photo by Narinder Nanu/AFP Photo)

A man rides a bicycle past a mural portraying Bollywood actor Aamir Khan and slogans to encourage people to cast their vote, in Jalandhar on May 10, 2024 ahead of the fourth phase of voting of India's general election. (Photo by Shammi Mehra/AFP Photo)

A schoolgirl reacts as she wades through a flooded street during heavy rain showers in Mumbai on August 18, 2025. (Photo by Punit Paranjpe/AFP 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.