NASA reported new results on September 2, 2026, from SpEED Demon, a sounding-rocket mission flown in August 2022. Four released probes and the main payload measured a sporadic E layer at five locations at the same time.
Why aviation readers should care
These thin concentrations of ionized material near 100 kilometers altitude can redirect radio signals. The measurements revealed an uneven, changing layer rather than a simple flat sheet, helping researchers study the environment through which communications signals travel.
Observation versus explanation
The team found structure consistent with wave-like atmospheric billows. That explanation remains plausible rather than confirmed because local winds and electric fields were not measured directly. The report announces research findings, not a new September rocket launch.
Sounding rockets briefly sample the upper atmosphere without entering a sustained orbit. Explore how rockets work and the radar encyclopedia.
Primary source: NASA report. Source published 2026-09-02; summary checked 2026-09-08.