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This Astronomy Picture of the Day: Quasar Galaxy Collision graphic also includes:
An image of a quasar. The large redshifts imply that quasars lie near the edge of the observable universe and must emit tremendous amounts of energy. There are also many embedded links to related topics.
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Classroom Considerations
- Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)