Motorless sailplanes could explore Martian surface for days at a time - Inceptive Mind

Motorless sailplanes could explore Martian surface for days at a time - Inceptive Mind https://www.inceptivemind.com/engineers-design-motorless-sailplanes-mars-exploration/25310/ Motorless sailplanes could explore Martian surface for days at a time  Inceptive Mind