Unified, or Doughnut, Theory of Active, Black Holes
Quiet Stargazing

Unified, or Doughnut, Theory of Active, Black Holes

Explore the profound quiet of the universe through NASA's high-resolution archives. Perfect for your stargazing journey.

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Celestial Log

NASA Observation

This infographic explains a popular theory of active supermassive black holes, referred to as the unified model -- and how new data from NASA WISE, is at conflict with the model.
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Stargazer FAQ

Are the colors in this nebula image real?

NASA often uses 'false color' techniques. Scientists map invisible wavelengths (like infrared) or specific gases to visible colors (red, green, blue) to highlight the nebula's structural details.

Can I see this nebula with a standard telescope?

While some bright nebulas are visible with entry-level telescopes, capturing these stunning details usually requires deep-sky astrophotography equipment and long exposures.

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