A Race Against Time to Rescue a Reef From Climate Change

In an unusual experiment, a coral reef in Mexico is now insured against hurricanes. A team of locals known as “the Brigade” rushed to repair the devastated corals, piece by piece.

1h

The Swiss Cheese Model of Pandemic Defense

It’s not edible, but it can save lives. The virologist Ian Mackay explains how.

1h

Police Drones Are Starting to Think for Themselves

In one Southern California city, flying drones with artificial intelligence are aiding investigations while presenting new civil rights questions.

1h

Cynthia Lummis, a Bull-Coaxing Conservative, Heads to the Senate

A right-wing rancher with a libertarian streak, Ms. Lummis, who served four terms in the House, is the first woman to represent Wyoming in the Senate.

1h

Two Retiring Senators, Two Divergent Views on How to Save the Senate

Senators Lamar Alexander, a Republican, and Tom Udall, a Democrat, agree the institution needs fixing but differ on what the solution is.

1h

Americans Voted in Huge Numbers. Is That the Future of Elections?

Almost 160 million people voted this year, as new options made necessary by the pandemic removed many of the traditional barriers to casting ballots.

1h

Joe From Scranton Didn’t Win Back the Working Class

An economic analysis of the counties that Joe Biden won and lost shows how the two parties are continuing to realign.

1h

The Virus Is Devastating the U.S., and Leaving an Uneven Toll

The United States saw the most new coronavirus cases of the pandemic on Friday, with deaths and hospitalizations also rising. Underlying conditions largely determine who survives.

9h

Flaws in Census Count Imperil Trump Plan to Exclude Undocumented Immigrants

More problems arise as the Census Bureau rushes to compile information needed for apportionment before President Trump leaves office.

10h

Fauci says he accepted Biden’s offer to be chief medical adviser ‘right on the spot.’

10h