If Mars is where Science says it is, then walking on Mars will never happen.
If Mars is where God says it is, it will still never happen;
God says all the stars will fall to Earth, and Mars is just a wandering ball of light, according to Him.
If you live long enough, you might see the falling stars.
I am 67 and it is extremely unlikely that I live long enough. There is a slim chance it could happen in the lifetimes of my children; but if not, then for sure in the lifetimes of some to all of my grandchildren.
But of course, you have to be a Believer to believe that, and there ain't many of us left anymore. And there will be even fewer of us when the star-shower begins. The beginning of the Persecution has already begun. I would be surprised if I die a natural death.