Science

A return to America's Eden
He was the personal doctor of both Alexander Hamilton and Aaron Burr, and the surgeon behind America's first botanical garden, which he planted for medicinal purposes. But most people have never heard of David Hosack.
Robots, not humans, are the new space explorers
Landing a man on the moon captures the public's imagination. But in the decades after the Apollo program, robots have also generated public excitement about space exploration.
Microsoft closes the book on its e-library, erasing all user content
The move is possible as a result of Digital Rights Management, an approach that allows companies to prevent piracy. Every purchased book will disappear this month.
Iran raises uranium enrichment beyond nuclear deal limits
Iran increased its uranium enrichment Sunday beyond the limit allowed by its 2015 nuclear deal with world powers, inching its program closer toward weapons-grade levels while calling for a diplomatic solution to a crisis heightening tensions with the U.S.