A violent solar eruption on May 31 launched a coronal mass ejection (CME) hurtling toward Earth, triggering a rare G4-level geomagnetic storm alert. Captured in real-time by U.S. Naval Research Laboratory instruments, this cosmic blast has the potential to disrupt satellites, communications, and military systems.
Local weather alerts are familiar warnings for potentially dangerous conditions, but an alert that puts all of Earth on warning is rare.
On May 31, U.S. Naval Research Laboratory’s (NRL) space-based instrumentation captured real-time observations of a powerful Coronal Mass Ejection (CME) that erupted from the Sun initiating a “severe geomagnetic storm” alert for Earth.
“Our observations demonstrated that the eruption was a so-called ‘halo CME,’ meaning it was Earth-d...
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