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Space Nukes: New Probe to Spot Hidden Threats
8 Jul
Summary
- Small satellites could detect secret nuclear arms in orbit.
- Probes would identify weapons by their subatomic particle emissions.
- System aims to deter conflict and ensure Outer Space Treaty compliance.
A scientist has proposed a novel monitoring system utilizing small satellites to detect undeclared nuclear arms in orbit, aiming to counter the growing militarization of space. These proposed probes would identify potential weapons by detecting tell-tale emissions of subatomic particles, a critical step in upholding international law and preventing catastrophic conflict among Earth's satellites.
The threat of off-planet conflict has escalated as major powers compete for dominance in space, an arena vital for communication and navigation. A surveillance mechanism for nuclear threats could serve as a crucial deterrent, discouraging the deployment of such weapons and de-escalating crises between nations.
According to research, the proposed weapons-spotting satellite, a CubeSat weighing less than 100kg, could be constructed from commercially available parts. It would detect neutron particles emitted by a nuclear device's uranium when interacting with protons in Earth's magnetic field, requiring about a week of measurements from a 4km distance.
This passive detection method is considered politically feasible as it avoids direct interaction with the target satellite, unlike X-raying or irradiation. It addresses a significant gap, as no technical mechanism currently ensures compliance with the 1967 Outer Space Treaty, which bans nuclear arms in orbit.
Concerns have heightened due to U.S. intelligence reporting Russia's development of a space-based anti-satellite nuclear weapon, despite Russia's stated opposition to nuclear deployment in space. This follows historical precedent, such as the 1962 Starfish Prime test that damaged numerous satellites and caused disruptions on Earth.
Experts suggest the proposed monitoring method, while promising, requires further refinement and testing to perform effectively in varied conditions, including differentiating nuclear signals from other neutron sources or identifying evasive satellites. It could complement existing satellite security measures by identifying prohibited systems before deployment.
