Satellites Used to Have Months to Avoid Collisions—Now They Have Days

Scientific AmericanThursday, December 18, 2025 at 2:00:00 PM
NegativeScience
  • In the current landscape of satellite operations, spacecraft are now facing a significantly reduced timeframe to avoid potential collisions, with many having less than a week to take evasive action. This shift is largely attributed to the rise of mega constellations, which have increased the density of satellites in orbit.
  • The reduction in time available for collision avoidance poses serious risks not only to the satellites themselves but also to the scientific missions they support. This situation necessitates improved tracking and coordination efforts to ensure the safety and functionality of space assets.
  • The proliferation of satellite megaconstellations is not only complicating collision avoidance but is also beginning to interfere with astronomical research conducted by space observatories like the Hubble Space Telescope. This interference raises concerns about the long-term implications for scientific exploration and the sustainability of space operations.
— via World Pulse Now AI Editorial System

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