Now there is a fantasy to think about. I am not sure that it would be possible, but interesting to think about.
As I understand it, an aircraft's stall speed is above the speed of sound in Mar's atmosphere.
LOL, a supersonic hang-glider!
I always wished I could, but never got around to it. Back in the early '70s they used to hang glide with big old aluminum contraptions in the hills above Northridge, California. We would ride our bikes up there and ask the poor guys a million questions. I have always been drawn to it, love to watch it, but now that I'm over 40 with several kids I probably never will take up the sport.