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The pair of galaxies NGC 1531/2, engaged in a spirited waltz, is located about 70 million light-years away toward the southern constellation Eridanus (The River). R. Gendler and J.E. Ovaldsen/ESO/IDA hide caption

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R. Gendler and J.E. Ovaldsen/ESO/IDA

Does The Size Of Space Freak You Out?

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A stellar nursery consisting of a group of thick clouds of dust, known as the Thackeray globules, silhouetted against the pale pink glowing gas of the nebula, as captured by the European Southern Observatory's Very Large Telescope. ESO hide caption

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ESO

The Horsehead Nebula, as seen with infrared light, shows clouds surrounding it have already dissipated. The Horsehead formation has about 5 million years left before it, too, disintegrates. NASA/ESA hide caption

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NASA/ESA

25 Years On: How Hubble's Vision Became Our Own

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Planet: bottom of a glass containing half and half, water, food coloring. Moons: bottom of a glass containing coconut milk, water, food coloring. Stars: salt, cinnamon, baking powder, Tums. Navid Baraty hide caption

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Navid Baraty