Rare Red Halo Returns to Italian Alps

A rare atmospheric spectacle—a massive, crimson halo spanning 200 kilometers—has returned to the skies above the Italian Alps for the second time in three years. The phenomenon, known as an ELVE (Emission of Light and Very Low-Frequency Perturbations Due to Electromagnetic Pulse Sources), was first discovered by NASA in the 1990s and is triggered by extraordinarily powerful, distant lightning strikes. This statistically improbable reappearance over the small town of Possagno, captured by a single dedicated photographer, has stunned scientists worldwide and highlighted the mysterious beauty of Transient Luminous Events in Earth’s upper atmosphere.

Story Highlights

A massive red halo appeared over Possagno, Italy, on November 17, 2025 -the second occurrence in three years.
A phenomenon called an ELVE was triggered by extraordinarily powerful lightning 300 kilometers away.
Lightning strike measured 303 kilo-amperes, up to 30 times stronger than typical thunderstorm discharge.
The same photographer captured both events using specialized equipment in a statistically improbable coincidence.

Rare NASA-Discovered Phenomenon Returns to Italian Alps

Nature photographer Valter Binotto documented an extraordinary atmospheric event over Possagno, Italy on November 17, 2025, when a massive red luminous halo spanning 200 kilometers appeared in the night sky. The phenomenon, scientifically classified as an ELVE (Emission of Light and Very Low-Frequency Perturbations Due to Electromagnetic Pulse Sources), represents the second occurrence of this rare event over the same small Alpine town within three years.

ELVEs belong to a category of atmospheric phenomena called Transient Luminous Events that NASA first discovered through space shuttle photography in the 1990s. These events occur when powerful lightning strikes generate electromagnetic pulses that travel upward and collide with the ionosphere approximately 100 kilometers above Earth’s surface, exciting nitrogen molecules to produce the characteristic red glow lasting only one millisecond.

A giant red halo briefly lit up the sky over Possagno, a village near the Italian Alps, on November 17.https://t.co/r6LpwFH1W2

— Coast to Coast AM (@coasttocoastam) November 29, 2025

Extraordinarily Powerful Lightning Triggers Atmospheric Display

The November 2025 ELVE originated from a thunderstorm near Vernazzo, approximately 300 kilometers south of Possagno. Binotto’s measurements revealed the lightning bolt carried an electrical current of 303 kilo-amperes, representing a discharge between 10 and 30 times more powerful than average thunderstorm lightning. This extraordinary electrical power enabled the electromagnetic pulse to reach the ionosphere and create the visible red ring marking where the pulse impacted the upper atmosphere.

The massive scale of ELVEs allows them to be photographed from hundreds of miles away, explaining why residents of Possagno could observe events triggered by distant storms. Binotto was attempting to photograph sprites, another type of transient luminous event, when he fortuitously captured the ELVE using his Sony A7S camera with specialized low-light settings. The photographer noted that while he missed capturing sprites, he successfully documented this even rarer atmospheric phenomenon.

Statistical Improbability Highlights Scientific Significance

NASA scientists describe the dual occurrence of ELVEs over the same tiny town within three years as “extremely unlikely,” underscoring the remarkable nature of Binotto’s documentation. The March 2023 event originated from a storm near Ancona, approximately 280 kilometers southeast of Possagno, while displaying a more vibrant red hue compared to the recent sighting. Both events demonstrate identical structural characteristics despite originating from different storm systems hundreds of kilometers apart.

The scientific community has established a clear understanding of ELVE mechanics, eliminating the initial mystery surrounding their UFO-like appearance. These atmospheric events can generate secondary effects, including X-rays and relativistic electrons, though these pose no risk to ground populations. ELVEs have also been detected on Jupiter through NASA’s Juno spacecraft, appearing blue or pink due to a hydrogen-based atmospheric composition rather than Earth’s nitrogen-dominated upper atmosphere.

Watch the report: Unveiling the Mystery: Capturing the Elusive Red Halo over the Italian Alps