Ginny ping!
The same rover that brought Ingenuity to Mars also has another amazing proof-of-concept experiment on board. It is called Moxie. It has proved we can make oxygen out of the Martian atmosphere. No, not terraforming. Just oxygen for humans (and perhaps for fuel eventually). At first, humans will have to bring all the necessary oxygen to survive. What’s really great is that eventually humans could make oxygen, and not always have to carry massive amounts.