Although NASA has a bold plan for a "2030 landing on Mars", this does not mean that the space agency can be successfully reached. In fact, NASA has recently admitted that, under the current cost budget, there is simply not enough money to send people to the stars and then bring them back to Earth! Of course revisiting the moon is another matter. In Wednesday, William H. Gerstenmaier, a conference speaker at the American Academy of Aeronautics and Astronautics, said: "I can't set a date for humans to land on Mars, but there are other reasons for that."
"There is no way to deploy ground systems on Mars at the budgeted level we have described (about 2%)." Admission, landing and landing are great challenges for us.
As for NASA's new space toys--including the Space Launch System (SLS) and the Orion spacecraft--the cost of getting close to Mars is high. The agency also needs to design the lander (including landing and takeoff).
But that does not mean NASA is going to cancel the Mars mission, and in order to achieve this goal, the agency will be seeking more money in the next few years or working with the private sector to make a more affordable manned Mars mission.
Gerstenmaier also said NASA was exploring the task of restarting the moon, including building a base on the Earth's satellite:
If we find water on earth and want to explore more extensively on the moon, we have the ability to expand the lunar mission with the support of the Deep Space Gateway (deep Gateway). Even if we want to focus more on Mars, we can stay.
But that does not mean that the lunar project will be much cheaper, even if it costs more than 1 billion + dollars a year in a space launch system.