How much time it would take to go to mars by NASA Rockets?
You could send a robot to Mars using a Centauri rocket now. It would take a bit over 6 months using a Hohmann minimum energy orbit. NASA does not have any rockets that could sent humans to Mars and likely won’t for 7 to 10 years. To learn about NASA’s current plan to go to Mars see the book, “Expedition Mars” by Martin J. L. Turner. A better book (that gives a cheaper way) is “The Case for Mars” by Robert Zubrin. Ask your librarian for these if you want to learn more. Warm regards, Rick.