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What is a Lagrangian used for in physics?

How Emmy Noether's theorem uses the Lagrangian to provide a formula for calculating the quantity of symmetries in a system—like the orbit of planets.

New York City could see its hottest weather in more than a decade

Temperatures in New York's Central Park haven't surpassed 100 degrees Fahrenheit since 2012; but that may be about to change

N.I.H. Announces World’s Largest Integrated Health Database

EMILY BAUMGAERTNER NUNN

It contains more than half a million people’s genomes, paired with clinical records and wearable tech data. That gives researchers unmatched power to study both diseases and treatments.

NASA announces Astrobotic, Intuitive Machines and Firefly to build lunar landers for a future moon base

Three companies will receive a total of $600 million to executive four moon landings, laying the groundwork for a planned crewed outpost on the surface

The Vera Rubin Telescope Begins Surveying Our Cosmos

KATRINA MILLER

The Vera C. Rubin Observatory is beginning the widest, deepest survey yet of the southern sky.

Curiosity, Perseverance and Now Promise? NASA May Send a Mars Rover to the Moon.

KENNETH CHANG

As part of plans to establish a lunar base, the space agency may send to the moon a spare test version of the rover — as well as a soccer ball.

Europe’s Future Circular Collider could revolutionize particle physics—if it’s ever built

After decades of debate, the scientific case is clear for Europe's Future Circular Collider, a colossal successor to the Large Hadron Collider. But transforming this megaproject from vision to reality is far from guaranteed

Why this 98-qubit quantum computer is a big deal

A new quantum computer sets a high watermark for accuracy. Are we on the verge of a big breakthrough?

SpudCell: Scientists Made a Cell With Most of the Hallmarks of Life. Here’s What to Know.

K. R. CALLAWAY

From why it was created to whether it’s alive, here’s what to know about SpudCell, the latest advance in synthetic biology.

Scientists just unveiled “cyborg” cockroaches that can breathe underwater for hours

The bionic bugs could be called up for aquatic search and rescue missions, according to the researchers

This planet survived the death of its star—and kept its atmosphere

Astronomers have for the first time observed an atmosphere around a giant planet orbiting a white dwarf

Supreme Court limits police searches of phone location data

A new ruling rules that geofence warrants are Fourth Amendment searches, but it stops short of banning police access to revealing location histories

NASA Aims to Catch a Falling Space Telescope and Push It Back Up

KENNETH CHANG

Without a rescue mission, NASA’s Swift Observatory, which studies some of the most powerful explosions in the universe, will burn up in the atmosphere within a few months.

Cheating Chickadees Are Seduced by Smarts

ANNIE ROTH

Female mountain chickadees are loyal to their mates, unless a smarter suitor comes along.

The Rubin telescope just began the largest cosmic time-lapse in history

The Vera C. Rubin Observatory in Chile has started a 10-year survey of the changing night sky