The mysterious salt volcano of dwarf planet Ceres.
At La Hoya in northern Spain, archaeologists uncovered evidence of a massacre around 350 BC, with maimed bodies lying in the streets. The burned town was still full of valuable goods, and some of the dead were still wearing jewelry, so this attack was all about killing.
Cool 5-minute video of a dive to the bottom of the Antarctic Ocean, 1000 m down.
Transforming urban spaces with brightly colored, architect-designed playgrounds.
Unable to overthrow any government, al Qaeda and the Islamic State are increasingly fighting each other: "internecine fighting has claimed the lives of some 300 jihadists in West Africa's Sahel region since July alone."
11-minute video explaining what happened to Dubai's ambitious plans for artificial islands.
Kwame Anthony Appiah looks into the political complexity of Blackness in Britain and the US; identity, he says, is fractal, and any group can always be subdivided further. (NY Times)
Tool-using ants build siphons to wick sugar water out of containers, keeping them from drowning.
Learning from television how the upper class lives: "I'm not rich," I said, "I just watch a lot of TV." (NY Times)
The grapefruit and the crazy history of citrus. I had no idea.
"A new rule in the Federal Duck Stamp Contest, requiring artists to include hunting themes in their submissions, has raised eyebrows and objections in the duck painting community." (NY Times)
Young people these days: Brigham Young University-Idaho threatens to expel students who intentionally get Covid-19 so they can sell their antibody-rich plasma.
Treaties spell out how the US and Mexico divide the water of the Rio Grande and the Colorado River, but this year there isn't enough water to go around, so Mexican farmers seized a dam and blocked water shipments to the US. (NY Times)
The coronavirus and the nationwide shortage of refrigerators.
Xi Jinping promised a while back that China would be "carbon neutral" by 2060; now a team of Chinese experts has produced a plan showing how that might happen.
Good essay by Jamelle Bouie arguing that "originalists" like Amy Coney Barrett pay too much attention to the Constitution of 1787 and not nearly enough to its major revamping in the post-Civil War era embodied in the 13th, 14th, and 15th Amendments. (NY Times)