To improve on the first tower, making it more complex but with simpler hardware, and to handle all aspects of the Starship system, including launching, catching, and refurbishing.
It may be more complex and require a streamlined process, which could take months or almost a year to complete, similar to the 13 months it took for the first tower.
SpaceX engineers are simplifying the design to make it more efficient, reducing the number of parts and systems while increasing its capabilities.
It will enable rapid reusability of boosters and Starships, crucial for refueling and multiple launches, which are necessary for missions to the Moon and eventually Mars.
Catching the booster with the first tower is risky, and if something goes wrong, it could delay further launches. The second tower is designed to be more reliable for this task.
The Starship system is a fully reusable, two‑stage‑to‑orbit super heavy‑lift launch vehicle under development by SpaceX. The system is composed of a booster stage named Super Heavy and a second stage, also called "Starship"