Tesla CEO and SpaceX CEO Elon Musk earlier reiterated that he will remain committed to the Mars immigration plan and make humans an interplanetary species. He also plans to build a self-sufficient city on Mars within the next 20 years.
In response to the relevant tweets, Elon Musk not only responded to the current development status of SpaceX with photos, but also reiterated his commitment to the goal of sending humans to live on Mars, and will build a self-sufficient urban system on Mars, no longer relying on Earth's resources.
At the same time, Elon Musk also stated that if the speed of rocket launches can be successfully increased, it will take humans about 20-30 years to successfully land on Mars and become a multi-planetary species.
I hope there is a self-sustaining city on Mars in 20 years!
- Elon Musk (@elonmusk) August 14, 2022
Elon Musk emphasized that just as humans landed on the moon in 1969, they also expect to land on Mars in the future.
Previously, many people believed that when the total human population in the world exceeds a certain size, it will lead to more obvious changes in the global ecology. Therefore, many people have proposed looking for other planets suitable for human survival and immigration. Mars is a planet that many studies believe is more suitable for human migration on Earth.
Compared to Venus, which is similar in composition, size, and gravity to Earth, Mars's day is closer to Earth's, lasting approximately 24 hours, 39 minutes, and 35.244 seconds. Mars' axial tilt of 25.19° is similar to Earth's 23.44°, resulting in climate variations similar to Earth's. Furthermore, Mars was previously believed to lack the water necessary for life. However, recent observations have confirmed the presence of frozen water on Mars, with even higher concentrations in the subsurface soil, highlighting the high likelihood of groundwater on Mars.
However, landing on Mars may not be ideal. Mars has a surface area of only 28.4% of Earth's, a diameter of only half, a lower average density, and a gravity of only 38% of Earth's. Its atmosphere is only 0.7% of Earth's. Therefore, a Mars colony would require more changes than one might imagine.
But even so, many people still focus their hopes of migrating to planets other than Earth on Mars, which is one of the reasons why SpaceX is currently actively exploring Mars.
