Plasma sheath formation during atmospheric reentry blocks radio communication
The formation of a plasma sheath around a spacecraft during atmospheric reentry reflects and absorbs electromagnetic waves, causing severe signal attenuation and radio communication blackout.
The claim is a well-established empirical fact in aerospace engineering and plasma physics known as the reentry blackout phenomenon. Multiple retrieved papers explicitly confirm that the plasma sheath surrounding a reentering vehicle reflects and absorbs radio signals, blocking communication. Therefore, the claim is strongly supported by the evidence.
Sun J, Liu X, Zhou J, Kudyshev Z, Litchinitser NM. Experimental Demonstration of Anomalous Field Enhancement in All-Dielectric Transition Magnetic Metamaterials.. 2015. https://doi.org/10.1038/srep16154
Paper [2] discusses the critical period when all communications are lost due to the reflection and absorption of electromagnetic waves by the plasma sheath created during spacecraft reentry.
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Ouyang W, Liu Q, Zhang Z, Jin T, Wu Z. Effect of non-ionizing reaction rate (assumed to be controllable) on the plasma generation mechanism and communication around RAMC vehicle during atmospheric reentry.. 2021. https://doi.org/10.1038/s41598-021-99584-3
Paper [3] investigates radio frequency blackout caused by the attenuation effect of the plasma sheath on communication signals during the reentry of the RAMC vehicle.
Qin M, Tian D, Lin B, Yuan K. Active Decoupling of Signal and Turbulence in Reentry Plasma Sheath via Dynamically Tuned Magnetic Field. 2026. https://doi.org/10.20944/preprints202605.0397.v1
Paper [4] examines how a spacecraft is enveloped by a turbulent plasma sheath during atmospheric reentry that induces severe signal degradation and communication blackout.
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