See some of the incredible shortlisted images, and hear from the world-class judges of our international astronomy competition.
Winners announced 15 September.
You can see all the photos here.
Carol Greider: The Anatomy of a Scientific Discovery: Telomeres and Telomerase – Past Present and Future
Berkeley Lab: Javier Ceja-Navarro | Do Insects Contain the Secrets to Sustainable Food and Energy Production?