Insight Investment Astronomy Photographer of the Year: 2018 shortlist revealed

The Royal Observatory Greenwich has released a selection of shortlisted images from this year's Insight Investment Astronomy Photographer of the Year Award. The international astrophotography award is held annually, and the 2018 winners will be announced at a special ceremony at the Royal Observatory on 23 October 2018. Until then, here is a selection of some of the incredible images that impressed this year's panel of judges.