Digitized 3D model of the Space Shuttle Discovery, orbiter OV-103 of the NASA Space Shuttle program. The geometry comes from Smithsonian 3D Digitization and is provided here converted to STL.

Original object dimensions: 31.87 × 28.02 × 16.95 m (bounding box).
Original record: https://3d.si.edu/object/3d/orbiter-space-shuttle-ov-103-discovery:d8c636ce-4ebc-11ea-b77f-2e728ce88125

Note: adjust the scale and check the orientation and supports in your slicer before printing.