NASA doesn't have a specific date set for a human mission to Mars. They are aiming for the mid-2030s, but this is subject to change based on technological advancements, budget constraints, and other factors.

Here's what we know:

* Artemis Program: NASA's current focus is on the Artemis program, which aims to return humans to the Moon by 2025. This program is a stepping stone towards Mars, providing valuable experience and testing technology.

* Mars 2020 Mission: The Perseverance rover landed on Mars in February 2021, and its mission is to search for signs of past life and collect rock samples for future return to Earth. This mission provides valuable data and insights for future human exploration.

* Human Landing System: NASA is currently developing a Human Landing System (HLS) for the Artemis program, which will be used to transport astronauts to the lunar surface. This technology could potentially be adapted for future Mars missions.

It's important to remember that these are ambitious plans and timelines can change. NASA is constantly evaluating its progress and adjusting its strategies as necessary.