Lux Aeterna is a startup founded by a SpaceX veteran aiming to revolutionize the satellite industry by developing reusable satellite structures. Their core innovation is a satellite design with an integrated heat shield, enabling satellites to safely return to Earth with their payloads intact. This technology is intended to support various futuristic business models, including testing new materials in orbit, manufacturing in microgravity, and potentially resource harvesting. The company also envisions a 'dynamic upgrade capability' where satellite components can be updated annually by returning and refurbishing the satellite, rather than building entirely new ones. Lux Aeterna's first demonstration mission, the Delphi spacecraft, is scheduled for launch in the first quarter of 2027 on a SpaceX rocket, with a partnership for reentry at Australia's Koonibba Test Range.