June 18, 2025 A study by researchers at the Massachusetts Institute of Technology warns that SpaceX may face a severe threat to its Starlink satellite constellation, with up to 50–66 per cent of low‑Earth orbit pathways at risk due to orbital congestion and declining upper‑atmosphere density.

The report highlights that greenhouse‑gas‑induced cooling is shrinking the thermosphere — the atmospheric layer that helps burn up space debris. With over 10,000 Starlink satellites already in orbit and deployment rates increasing about 35 per cent, the natural “clean‑up” effect is faltering .

Experts warn of a rising collision hazard reminiscent of Kessler syndrome, in which debris from one collision triggers further damage. Already, Starlink makes up the majority of active satellites and contributes significantly to orbital clutter

SpaceX has not publicly responded to the MIT warning. But with orbital lanes reaching capacity, the study signals a growing need for debris management and coordination — or else future launches could face steep risks and higher costs.