6 Staking Out Survival for Sonoran Pronghorns by Ben Ilkenson
Racing against extinction, the fastest land mammal in North America is the focus of new recovery efforts on both sides of the U.S.-Mexico border

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14 Into the Light of the Night Sky  by Alex Gillis, Photographs by Alan Sirulnikoff
Scientists near Fairbanks, Alaska, are shooting rockets into the aurora borealis to measure the phenomenon's effect on telecommunications and other activities

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22 En Route to the Real Robinson Crusoe by Louis Werner
A simple story that started on Chile's Juan Fernandez archipelago spawned a legend that has inspired numerous books and films over centuries and across oceans

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30 Reality in the Raw by Joshua Goodman
With an eye for detail and emotion, Argentine photographer Marcos Zimmermann captures often overlooked historical and physical landscapes of his native country

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38 Behind Bountiful Banners by Caleb Bach
Pursuing a lifelong passion, Whitney Smith has documented the origins and significance of hundreds of flags of the hemisphere

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44 Wry Modernist of Brazil's Past by David A. Taylor
Machado de Assis created humorous and dark works of implicit social criticism, free of the conventions of his nineteenth-century Rio

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