Astronomy Picture of the Day

The Holographic Principle


Is this picture worth a thousand words? According to the Holographic Principle, the most information you can get from this image is about 3 x ...

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Between the Rings


On April 12, as the Sun was blocked by the disk of Saturn the Cassini spacecraft camera looked toward the inner Solar System and the gas giant's ...

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NGC 4302 and NGC 4298


Seen edge-on, spiral galaxy NGC 4302 (left) lies about 55 million light-years away in the well-groomed constellation Coma Berenices. A member of ...

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Asteroid 2014 JO25


A day before its closest approach, asteroid 2014 JO25 was imaged by radar with the 70-meter antenna of NASA's Goldstone Deep Space Communications ...

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The Red Spider Planetary Nebula


Oh what a tangled web a planetary nebula can weave. The Red Spider Planetary Nebula shows the complex structure that can result when a normal ...

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Night Glows


What glows in the night? This night, several unusual glows were evident -- some near, but some far. The foreground surf glimmers blue with the ...

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Two Million Stars on the Move


If you could watch the night sky for one million years -- how would it change? Besides local effects caused by the Earth's spin and the ...

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Life-Enabling Plumes above Enceladus


Does Enceladus have underground oceans that could support life? The discovery of jets spewing water vapor and ice was detected by the ...

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Luminous Salar de Uyuni


A scene in high contrast this thoughtful night skyscape is a modern composition inspired by M. C. Escher's lithograph Phosphorescent Sea. In it, ...

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Earth Shadow over Damavand


Through crystal clear skies this beautiful panorama follows the curve of planet Earth's shadow rising across the top of the world. The tantalizing ...

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