The ISS May Live for a Little Bit Longer for a Totally Predictable Reason
Summary
Congress has mandated that NASA must wait to deorbit the International Space Station (ISS) until a commercial successor is operational in space, ensuring a smooth transition for future space endeavors.
Key Insights
Why can't the ISS remain in orbit indefinitely without intervention?
The ISS orbits at about 257 miles (415 km) altitude, where atmospheric drag causes it to lose altitude over time; without periodic reboosts, its orbital lifetime is roughly one to two years, risking an uncontrolled reentry that could endanger people on Earth.[1]
Sources:
[1]
What is NASA's plan for deorbiting the ISS, and why the delay until commercial successors?
NASA plans to retire the ISS around 2030-2031, allowing its orbit to decay for 12-18 months after the last crew departs, then using a modified SpaceX Dragon vehicle with enhanced propulsion for a controlled deorbit into the ocean; Congress mandates delaying until commercial stations are operational to ensure continuous low-Earth orbit research capabilities and avoid a gap that could benefit competitors like China's Tiangong.[2][3][5][6]