A nurse at St. Joseph's Hospital wears a unique mask as the hospital celebrates the release of a COVID-19 patient after 45 days in their care during the outbreak of the coronavirus disease (COVID-19) in Orange, California, U.S., May 5, 2020. (Photo by Mike Blake/Reuters)

A woman cools off after taking a traditional steam bath (banya) at Sergei Benke's homestead in the village of Bobrovka, Tarsky District in Omsk Region, Russia on December 11, 2020. (Photo by Sergei Malgavko/TASS)

Afghan balloon vendors walk with their bicycles to look for customers, near a market in Kabul on January 8, 2025. (Photo by Wakil Kohsar/AFP Photo)

An osprey flies with a fish in its talons at the Sebastian Inlet State Park in Melbourne Beach, Florida on April 1, 2025. (Photo by Ronen Tivony/ZUMA Press Wire/Rex Features/Shutterstock)

«Maraatack». Barrio Alto, Almería, Spain. Ribeira took the photographs for her Agony in the Garden series in her native Spain, between 2021 and 2023. (Photo by Lúa Ribeira/The Guardian)

Two dummy tanks being pushed along a road by German soldiers. (Photo by Hulton Archive/Getty Images). Circa 1925

Kiritimati is a far-flung outpost of the Republic of Kiribati. The world's largest coral atoll, Kiritimati has just one flight a week to either Fiji or Hawaii, four-and-a-half hours in either direction. Tarawa, the capital of Kiribati lies nearly 3,300 km (2,000 miles) to the west – about three weeks by boat. No lawyers are based on Kiritimati and the High Court only comes once or twice a year to clear a backlog of the most serious cases, bringing a public lawyer for defendants who can't afford their own. (Photo by Lincoln Feast/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.