03/11/2022

Mars: Could life itself have made the planet uninhabitable?

Four billion years ago, the solar system was still young. Almost fully formed, its planets were starting to experience asteroid strikes a little less frequently. Our own planet could have become habitable as long as 3.9 billion ...

In 1 classroom, 4 teachers manage 135 kids—and love it

A teacher-in-training darted among students, tallying how many needed his help with a history unit on Islam. A veteran math teacher hovered near a cluster of desks, coaching some 50 freshmen on a geometry assignment. A science ...

The origins of human society are more complex than we thought

In many popular accounts of human prehistory, civilization emerged in a linear fashion. Our ancestors started as Paleolithic hunter-gatherers living in small, nomadic and egalitarian bands. Later, they discovered farming ...

Burglars steal more gold when the price is high—new research

Are criminals rational? In his groundbreaking work of 1968, Gary Becker argued that they are. The American economist, who would go on to win the Nobel prize in economics in 1992, theorized that individuals engage in crime ...

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