Leap Seconds Have Helped Keep Clocks Synchronized with Earth’s Rotation, But Their Time May Be Over

Canada's First Nations Are Using Their Land To Build Dense Housing

These New Snails Can Slam Shut Their Shells Like Doors

Kathy Hochul Chooses Kids Over the Teachers’ Union

How artificial neural networks build their own learning machinery

Elephants Engineer Their Ecosystems Even in Death

Congratulations to the Hoover Institution's Robert E. Hall, on His Economics Nobel Prize

Today in Supreme Court History: October 11, 1972

The Political Constitution at War

Open Thread

Fusionism in the Twenty-First Century

Don't Blame AI Labs for What Hackers Do With Their Tools

The NFL Chooses States, Not the CFTC, in Fight Over Prediction Market Regulation

“They Have Been Denied Their Right to Parent and Protect Her”

Two States. Two Children. Two Fights Over Gender.

Single Orangutan Moms Set up Playdates for Their Kids

In 1960, Mathematicians Predicted that Earth’s Population Would Reach Infinity on a Friday Next Month

Ig Nobel hosts science’s silliest ceremony outside U.S. for first time

Silicon Valley’s self-styled futurists build marvelous machines. Their politics, though, recycle discredited ideas. Jill Lepore explains

The ominous ‘fire clouds’ or ‘pyrocumulonimbus’ seen in France for the first time

Anthony Fauci’s Diary Reveals a Human at the Helm