On September 7, 2025, the moon transformed into a breathtaking blood red as a total lunar eclipse graced the skies, captivating viewers worldwide. But for two lucky amateur astronomers in Namibia, this celestial event was about to become even more extraordinary.

Michael Jäger and Gerald Rhemann seized the opportunity presented by the moon's dimming to capture images of the interstellar comet 3I/ATLAS. What they discovered was astounding: the comet was glowing a vibrant green!

What Makes 3I/ATLAS So Special?

3I/ATLAS is only the third confirmed interstellar comet to grace our solar system, and its origins remain shrouded in mystery. Unlike traditional comets, its hyperbolic trajectory suggests it's not bound by the sun's gravity, implying it hails from a distant star system.

It follows the notable paths of ‘Oumuamua, the enigmatic cigar-shaped object that ignites endless discussions, and comet 2I/Borisov, the first confirmed interstellar comet known for its typical dusty appearance.

Where Was This Astonishing Photo Taken?

The stunning images were captured in the pristine Kalahari Desert, a location known for its incredibly dark skies — a perfect backdrop for astronomical observations.

Why the Green Glow?

The vibrant green hue of 3I/ATLAS caught everyone’s attention, hinting at unusual chemistry at play. Initially believed to contain diatomic carbon (C2), a molecule known for its fluorescence when exposed to sunlight, new findings from Kitt Peak Observatory suggested the comet is actually low in carbon-chain molecules.

So how did this unexpected green glow appear? One theory posits that solar heating may have melted icy layers, releasing trapped diatomic carbon. Another possibility is that the glow originates from other unidentified chemicals unique to this interstellar traveler, lending it a distinct hue not typically seen in our solar system.

As astronomers pursue more insights into 3I/ATLAS, it continues to be a captivating mystery of the cosmos. Stay tuned for more discoveries about this extraordinary interstellar wanderer!