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Guided Trails
Editorial paths designed to help you observe visual evidence before interpreting the images.
- 6 steps · 7 minEarth or Another World?
Six close views test what terrain, atmosphere and scale can—and cannot—tell you.
- 12 steps · 12 minHow Space Gets Its Colors
Twelve images show how telescopes turn wavelengths and measurements into color.
- 6 steps · 7 minReading a Nebula
Six images turn clouds of gas and dust into structures you can learn to read.