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The Austrian Mint surprises once again with a jewel that combines science, art, and a passion for the cosmic. The second installment in its ambitious "Beauty of the Universe" series has arrived, and it has arrived with a piece that is literally out of this world: a three-dimensional coin dedicated to the Einstein Ring , one of the most extraordinary phenomena in the cosmos.
A Heavenly Series
Comprised of five 20-euro silver coins, this series celebrates the spectacular universe through unique shapes and scientific concepts transformed into tangible art. Each coin is a small sculpture designed to cleverly illustrate a different astronomical phenomenon, and the Einstein Ring 2025 is no exception.
The Ring That Einstein Didn't See
The protagonist of this new broadcast is an optical phenomenon as beautiful as it is complex: the Einstein Ring. Although Albert Einstein himself did not believe it could ever be observed, the first ring was discovered in 1979, decades after his death. Today, this galactic ring is a window into the curvature of space-time, something Einstein explained with his theory of general relativity.
When light from a distant galaxy passes through the gravitational field of a closer galaxy, it bends, creating an optical illusion: a single galaxy appears duplicated and arranged in a near-perfect ring around the massive object acting as a gravitational lens . What seems like a miracle is, in fact, a cosmic dance explained by the German genius's equations.
Design that Hypnotizes
This coin not only captures the scientific wonder of the phenomenon, but physically recreates it in an unprecedented three-dimensional form . On the obverse, a circular wave gently rises to represent the multiplication of the light source. At the center, a galaxy cluster symbolizes the deflection point, and the formula Δ∅=4GM/bc²—used to calculate the angle of light deflection—is inscribed as a tribute to the precision of science.
The reverse, on the other hand, offers a full-color representation of the ring, striking a balance between scientific rigor and impressive aesthetics. The German word "Gravitationslinse " (gravitational lens) gives context and depth to this miniature work.
This new release is not only a visual delight for collectors, but also a fascinating gift for lovers of astronomy, physics, or simply those who appreciate the beauty of the universe from Earth. The "Beauty of the Universe" series promises to continue taking us on a journey through the mysteries of the cosmos, one coin at a time.
And if this piece is a sign of what's to come... the numismatic universe just got a whole lot more interesting.
2024: Supernova
2025: Einstein Ring
2026: Cat's Eye Nebula
2027: Gravitational Wave
2028: Protostar
Technical characteristics of the Einstein Ring coin
Issue date: May 14, 2025
Quality: Proof
Series: The Beauty of the Universe
Face value: 20 euros
Design: Mag. Helmut Andexlinger
Diameter: 34 mm
Alloy: 925 silver
Weight: 22.42 g
Print: 30,000
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