Top 5

The third-largest Ebola outbreak ever recorded, described by someone treating it while quietly calculating his own odds. It has been building for weeks, mostly unwatched.

A 15% single-day drop on soft earnings, and the rocket business worth half its peak. The premium that let the numbers not matter is being repriced in public, all at once.

Forty years of writing about what machines do to minds, narrowed here to one question: what does your hand know that a keyboard has never once asked it for?

Orcas have started ramming ocean sunfish hard enough to rupture them — a technique that looks like it is spreading through the population rather than being inherited.

She was painting Marie Antoinette before she was thirty, then fled the Revolution with her daughter and kept working across Europe. The panel is very good on the kept-working part.