Insight Astronomy Photographer of the Year 2015
Robotic Scope Winner: Comet Siding Spring alongside Mars by Sebastian Voltmer
What the judges say:
A great astronomical event captured for everyone to see. The close encounter between Mars and Comet Siding Spring was a reminder that comets can sometimes collide with planets — another good reason why humanity should keep its eyes on the sky! Marek Kukula
The winning images are showcased in an exhibition at the Royal Observatory Greenwich until 26 June 2016.