NASA has countless images available online for free download. We are particularly star struck (pun intended) with their Hubble Space Telescope shots of nebulae. A nebula is an immense photogenic cloud of cosmic gas that creates conditions leading to the formation of new stars. Many people are unaware that Hubble images are all taken in black and white. NASA technicians then use photo filters to colorize the images, but they have many much more important things to do than to obsess about details like photographers often do during what we call "post-processing." We, however, are willing to spend time to dodge and burn, and to improve clarity and contrast to provide more "pop" to images while remaining true to the NASA versions. Here are some of our favorite enhanced nebula images. Of course, like the originals, all these are in the public domain and available to all for free. Enjoy!

Bubble Nebula
Bubble Nebula
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Cone Nebula
Cone Nebula
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Horsehead Nebula
Horsehead Nebula
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Rosette Nebula
Rosette Nebula
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North America Nebula
North America Nebula
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Crab Nebula
Crab Nebula
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Wreath Nebula
Wreath Nebula
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Carina Nebula 2
Carina Nebula 2
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Eagle Nebula
Eagle Nebula
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Carina Nebula
Carina Nebula
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Helix Nebula
Helix Nebula
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NGC 281
NGC 281
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