Bringing Down the International Space Station: Why NASA Chose the Ocean, What It Costs, and Whether Humanity Has a Better Idea

The International Space Station has carried people continuously since November 2000. Its oldest modules were built for 30 years in orbit, and NASA plans to retire it in 2030 and steer it into a remote stretch of the South Pacific near Point Nemo. A SpaceX-built US Deorbit Vehicle, derived from Dragon and worth up to $843 million, will make the final push. NASA puts the full cost near $1.5 billion. This study asks whether a cheaper or wiser ending exists. Using NASA, GAO and peer-reviewed sources plus simple orbital calculations, it compares controlled reentry with boosting the station higher, sending it out of Earth orbit, and salvaging parts. Boosting to 800 km needs only about 34 t of propellant, yet it fails on debris risk, crew access and structural limits. Escape needs about 900 t. Controlled reentry stays the safest choice, while heritage and science can still be saved.