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Birthday · March 4, 2025

A Quadruple Alignment over Italy

March 4, 2025

On the day you were born, the universe was already ancient beyond measure — and yet, in all those billions of years, it had never once...

A Quadruple Alignment over Italy

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APOD published March 4, 2025. Credit: Valerio Minato. A publication-date match, not a photo taken on your date. Independent of NASA.

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A Quadruple Alignment over Italy

Original APOD · March 4, 2025

Why does this Moon look so unusual? A key reason is its vivid red color. The color is caused by the deflection of blue light by Earth's atmosphere -- the same reason that the daytime sky appears blue. The Moon also appears unusually distorted. Its strange structuring is an optical effect arising from layers in the Earth's atmosphere that refract light differently due to sudden differences in temperature or pressure. A third reason the Moon looks so unusual is that there is, by chance, an airplane flying in front. The featured picturesque gibbous Moon was captured about two weeks ago above Turin, Italy. Our familiar hovering sky orb was part of an unusual quadruple alignment that included two historic ground structures: the Sacra di San Michele on the near hill and Basilica of Superga just beyond. Your Sky Surprise: What picture did APOD feature on your friend's birthday? (post 1995)

Image credit: Valerio Minato

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