Space Traffic Control: intercepting signals in space

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Discussion Overview

The discussion revolves around the challenges and possibilities of detecting spacecraft at vast distances in space, particularly focusing on the use of lasers versus radar for detection, the implications of fusion propulsion, and the potential for automated systems to track various objects in the solar system. The conversation touches on theoretical and speculative aspects relevant to science fiction writing.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification
  • Worldbuilding

Main Points Raised

  • Some participants suggest that detecting spacecraft using thermal emissions from fusion propulsion could be feasible across large distances, while others express skepticism about the practicality of such detection methods.
  • There is a discussion about the limitations of optical detection, with some arguing that radar may be the only viable option due to the potential darkness of some objects.
  • One participant proposes using a system similar to TCAS (Traffic Collision Avoidance System) for spacecraft to broadcast their positions, while others raise concerns about the complexity of tracking not just spacecraft but also asteroids and other celestial objects.
  • A concept of deploying Von Neumann probes to create a network of telescopes for real-time tracking of space objects is introduced, although some participants question the feasibility and implications of such technology.
  • Several participants emphasize the importance of worldbuilding in speculative fiction, arguing that a well-developed traffic control system can enhance the story, while others suggest that readers may not require detailed explanations of such systems.
  • There is a debate about the visibility of objects in space, with some noting that certain objects may be difficult to detect due to their low albedo, while others argue that infrared detection could be more effective.

Areas of Agreement / Disagreement

Participants express a mix of agreement and disagreement regarding the feasibility of various detection methods and the implications of advanced technologies like Von Neumann probes. The discussion remains unresolved on many points, particularly concerning the practicality of proposed systems and their impact on storytelling.

Contextual Notes

Limitations include the uncertainty surrounding the effectiveness of different detection methods, the assumptions about technological advancements, and the varying definitions of stealth in the context of space travel. The discussion also highlights the complexity of tracking dynamic versus static objects in space.

Who May Find This Useful

Writers and enthusiasts of science fiction, particularly those interested in space exploration, detection technologies, and worldbuilding in speculative narratives.

  • #31
Otherwise, do i know right, that laser (or well directed radio) signals in space can't be detected unless a probe gets between the emitter and receiver?
So i can write, that a captain can calmly negotiate about backstabbing his ally?
 
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  • #32
GTOM said:
Otherwise, do i know right, that laser (or well directed radio) signals in space can't be detected unless a probe gets between the emitter and receiver?
Right.
 
  • #33
Although i still wonder. Due to limited telescope accuracy, from big distance, even a long boost phase appears to be a single point.
And after thrusters stop and ship cools down, IR emission drops by many magnitudes.
Could they determine, where exactly the ships are going?
 
  • #34
Spectroscopy from different directions could give 3D velocity data. Tracking the exhaust direction, if possible, can help as well.
 

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