By pointing powerful light columns to the heavens, Dutch artist Daan Roosegaarde creates arrows of light that point directly at a piece of space debris. Over four weekends in 2018 and into next year - 5-6 October, 9-10 November, 7-8 December and 18-19 January - the Esplanade square in Almere will host a live performance of his 'Space Waste Lab', where light columns point towards objects that are flying overhead.