Mon Jan 12 05:40:00 UTC 2026: ### Headline: ISRO Launch Failure Raises Concerns About Satellite Debris and Disposal

The Story:

An ISRO launch mission has reportedly failed, raising concerns about the fate of the 16 satellites that were intended to be placed into orbit. The article explores the issue of space debris created by defunct satellites, highlighting the potential dangers they pose to active satellites. It details the methods for disposing of old satellites, including natural deorbiting and controlled deorbiting, and the international regulations, such as the 25-Year Rule, aimed at mitigating space debris. The article also mentions Point Nemo in the South Pacific Ocean, a remote location used as a “spacecraft cemetery” for disposing of large satellites and space stations.

Key Points:

  • An ISRO launch mission has failed.
  • The fate of 16 satellites launched via PSLV rocket is uncertain.
  • Defunct satellites create dangerous space debris.
  • Natural deorbiting occurs when satellites in Low Earth Orbit (LEO, 200-2000 km) experience atmospheric drag, causing them to gradually fall.
  • Controlled deorbiting involves using remaining fuel to direct satellites to a specific disposal location.
  • The UN Committee on the Peaceful Uses of Outer Space (UN COPUOS) has established Space Debris Mitigation Guidelines.
  • The 25-Year Rule dictates that satellites should deorbit within 25 years of mission completion (USA/Europe are implementing a 5 year rule).
  • Satellites above 2000 km are often moved to graveyard orbits.
  • Point Nemo in the South Pacific is used as a spacecraft cemetery. Over 264 spacecraft have been disposed of there since 1971.

Key Takeaways:

  • The failure of the ISRO launch underscores the challenges of space missions and the potential for creating space debris.
  • The issue of space debris is a growing concern with international implications.
  • International guidelines exist for mitigating space debris, but adherence is crucial.
  • Controlled deorbiting and designated disposal locations are essential for managing the risks associated with defunct satellites.

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