The waning moon is setting over the mountain “Les Cornettes de Bise” located at the border of the Haute-Savoie and the Valais canton of Switzerland in the Chablais Alps, photographed from Glutieres, January 7, 2015. (Photo by Anthony Anex/EPA)

In collaboration with the Pennsylvania Department of Transportation, Allegheny College art students repurpose used street signs as art materials to create the PennDOT Road Sign Sculpture Garden in Meadville, Pennsylvania, USA on August 19, 2017. (Photo by Brian Cahn/ZUMA Wire/Rex Features/Shutterstock)

A conscript hugs a girl as he says goodbye to family members at a local railway station during departure for the garrisons, in Sevastopol, Crimea on November 9, 2022. (Photo by Alexey Pavlishak/Reuters)

A child enjoys yellow gingko leaves outside the Diaoyutai State Guesthouse on November 8, 2022 in Beijing, China. (Photo by Zhao Jun/China News Service via Getty Images)

A political billboard by the artist Karen Fiorito satirising Donald Trump and Elon Musk in Phoenix, US on March 12, 2025. The artwork, titled Twitler and Putin’s Puppet Do Washington, depicts Musk as a puppet master controlling Trump. The artwork on the other side, Liar in Chief, references Project 2025, a conservative proposal to overhaul the federal government. (Photo by Eduardo Barraza/ZUMA Press Wire/Rex Features/Shutterstock)

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.

This undated photo provided by NOAA in May 2018 shows aurora australis near the South Pole Atmospheric Research Observatory in Antarctica. When a hole in the ozone formed over Antarctica, countries around the world in 1987 agreed to phase out several types of ozone-depleting chemicals called chlorofluorocarbons (CFCs). Production was banned, emissions fell and the hole shriveled. But according to a study released on Wednesday, May 16, 2018, scientists say since 2013, there’s more of a banned CFC going into the atmosphere. (Photo by Patrick Cullis/NOAA via AP Photo)

Elodie Katze, co-owner of Wild Pole Studio, performs a trick on a pole as students look on during a class at the pole dancing studio Wild Pole in Paris, France, on March 26, 2024. (Photo by Benoit Tessier/Reuters)