The first model of the European Space Agency’s (ESA) reusable rocket demonstrator Themis being hoisted upright on its launch pad in Kiruna, Sweden. Credit: Swedish Space Corporation/ArianeGroup–Mattias Forsberg The first model of the European Space Agency's (ESA) reusable rocket demonstrator Themis is standing at its launch pad in Kiruna, Sweden. Themis is investigating technologies to demonstrate rocket stage recovery and reuse. The first vehicle model—called T1H for Themis-1 engine-Hop—arrived...