Abandonment issues: The urban explorations of Russian photographer Ralph Mirebs

You might already know the work of photographer and urban explorer Ralph Mirebs - his series of photos of abandoned Soviet spacecraft went viral earlier this year. His fascination with science and technology have fueled his photography, and he's passionate about documenting abandoned industrial spaces striving to always answer the question 'What was this used for?' See his work and find out more in our Q&A.