Every evening as the sun sets, Robb Wolf begins his nightly ritual: While his two daughters play, he slowly dims the lights, just a few lumens every 20 to 30 minutes, until the house, in Reno, Nevada, is dark. The family is asleep before 8 p.m. and awake before dawn, as Wolf imagines our ancestors […]

What you should know about your body’s biggest organ.

Why do so many corpses found in Europe’s peat bogs show signs of violent death?

When anthropologist Alyssa Crittenden began studying the Hadza people of Tanzania 10 years ago, she was surprised to see an 8-year-old girl head out to forage for golden kongolobe berries with her 1-year-old niece swaddled snugly on her back. The behavior starkly contrasted Crittenden’s own experience growing up in the United States, where mothers often […]

At long-term nuclear repositories in Finland and Sweden, waste will be ensconced in cast-iron inserts (right), which are then placed in copper canisters (left).Posiva Oy This is part 2 of Vincent Ialenti’s report on how how to think about nuclear waste in the environment over the very long term. Also see part 1, which ran […]

On June 1, 1676 the Battle of Öland was raging, as the Swedish navy grappled with a Danish-Dutch fleet for control of the southern rim of the Baltic Sea. Amid bad weather, Kronan—Sweden’s naval flagship in the region and one of the largest warships of its kind at the time—made a sudden left turn. Its […]