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At Home With Mark Zuckerberg And Jarvis, The AI Assistant He Built For His Family

Facebook’s CEO still loves to code. Here’s an exclusive peek at his new project, which plays music, makes toast, and occasionally annoys his wife.<p>When new engineers join Facebook–no matter whether they’re just out of college or VP-level veterans–they spend their first six weeks in Bootcamp, an …

Silicon Valley

The Biological Clock Hidden in Animals' Teeth

Stripes laid down by tooth enamel could reveal why big mammals grow slower—and live longer—than small ones.<p>One summer day last year, Timothy Bromage, a paleoanthropologist at New York University, was chewing on a lollipop lamb chop while vacationing in Cyprus. Suddenly, he heard a pop. When a sharp …


All the Biggest Space News to Look Forward to in 2017

Running a space program ain't easy. Spacefaring missions can take as long to plan and fund as they do to execute, so you'd better bet there's some …

Can You Get Through This Post Without Wanting To Brush Your Teeth?

Here's what your teeth look like up close and personal with a scanning electron microscope.

A researcher discovered how cavemen cleaned their teeth. It will make you want to brush yours.

The earliest known toothbrushes date back to 3500 B.C., found in Egyptian tombs next to their owners. They're pieces of stick, really, with frayed ends to whisk away debris. But the fact that the Egyptians thought to pack a toothbrush on their trip to the afterlife hints at one of the most vexing …