This week, we learned …
… how a “somewhat dreamy scholar” sent fake typhus vaccines to Nazi soldiers and provided the real thing to fellow inmates at Buchenwald. Read of the week!

Photograph by William B. Duff, courtesy U.S. Army. Public domain
Put Buchenwald in context with our interactive timeline of World War II in Europe.
… how illegal gold mining is threatening cocoa farmers—and your chocolate.
Where does your chocolate come from? Use our Planet Food interactive to learn more.
… about testing for wisdom, and why one psychologist thinks the U.S. education system is producing a system of “smart fools.”

Photograph by Anne Frances Revis, National Geographic
How is “generation geography” testing the wisdom of their students?
… Rome’s newest subway line is leading to archaeological wonders.

Photograph by Luis Marden, National Geographic
… the world’s largest telescope will finally allow astronomers to see stars without those distracting diffraction spikes.

Photograph by NASA, ESA, and H. Richer (University of British Columbia)
You don’t need the world’s largest telescope to spot a supernova.
… women have been charting careers in cartography for as long as there has been cartography.

Map by Emma Willard, courtesy Library of Congress
How are women cartographers reinvigorating mapmaking today?
… an evidence-based project has significantly cut fertilizer use while boosting crop yields for millions of small farms across China.

Photograph by George Steinmetz, National Geographic
… how centuries of Muslim rule—and generally peaceful religious coexistence—came to an end in Spain.

Painting by Francisco Pradilla Ortiz
… how pointed stone tools evolved over millennia.

Photograph by David Arnold, National Geographic
… private education is experiencing a worldwide boom.

… the deadliest animals in the U.S. aren’t what you think they are.

Photograph by Brian Finke, c/o Everybody Somebody Inc. and National Geographic
In the jungles of Hawaii, cattle are the most dangerous game.