Spacetober 2023 21. Habitat - ESA Moon base

Moon base concept by the European Space Agency, using inflatable habitats and regolith 3D-printing: https://www.esa.int/Enabling_Support/Space_Engineering_Technology/How_to_make_roads_on_the_Moon

References:
https://www.youtube.com/watch?v=A_SHgmGa_c8
https://www.esa.int/ESA_Multimedia/Images/2018/11/Future_Moon_base

Drawn using a mechanical pencil with a 0.5 mm HB lead, with colors inverted in Photoshop.