NASA is currently exploring visits to both the Moon and Mars. This is going to require new technology based on our current knowledge and performance. No more ship’s computers with less power than an Apple Watch. Traveling this far beyond our planet will require imagination as well.
My science fiction series Worlds of Sol envisions regular transits between Earth and Mars. But this isn’t easy. SpaceX has a good chance to mount the first expedition to the red planet, but we need a whole industry in space to realize our future.
My stories assume the use of a cycler. Reaching Mars is a discussion on this site of an innovative concept for travel between Earth and Mars. Check it out.