Earth-facing Region 4436 produces M1.9 solar flare and CME
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May 16, 2026
A moderately strong solar flare measuring M1.9 erupted from geoeffective Active Region 4436 at 16:12 UTC on May 16, 2026. A coronal mass ejection (CME) was produced, but analysis remains incomplete pending coronagraph imagery.
Source
Discussion in the ATmosphere