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Every month, National Geographic staff photographer Mark Thiessen answers your photography questions—and spills the secrets behind the shots.
See photos and decorate your desktop with the fantastic glowing patterns created by aurorae borealis streaking across winter skies in North America.
The stars may seem impossibly profuse and unfathomably distant. But technologies like the Hubble Space Telescope give us a front-row seat for the drama and beauty of the universe.
Find unusual vacation spots and journey through Mexico.
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Check the weather forecast in the local media as soon as you arrive somewhere so you can make plans for sunny, cloudy, or rainy days.
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