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Why have their been so many record-breaking heat waves this summer?

Record-breaking heat waves are beginning to blur together—here's why and what's making them so unbearable

Trump Sharply Cuts the Size of Two National Monuments in Utah

MAXINE JOSELOW

Native American tribes and environmental groups are expected to challenge the move to shrink the Bears Ears and Grand Staircase-Escalante National Monuments.

A Sweet Surprise: Scientists Find Sugar Deep in Our Galaxy

REBECCA DZOMBAK

It’s the first time a sugar molecule has been detected in interstellar space. The discovery provides tantalizing new clues into how life may have arisen on Earth.

Here's the deal with 'corn sweat'—it's not all actually corn's fault

Corn has taken the heat for recent Midwest summer humidity—unjustly, according to corn experts

ChatGPT just proved another 50-year-old math conjecture

What's the secret to prompting an AI to solve math problems that have left humans stumped? Tell it to believe in itself

Dark Sky Defenders Raise Alarm Along the Border of West Texas

KATRINA MILLER AND EMILY ELCONIN

Residents fear that the Trump administration’s plans to build a border wall will threaten the region’s spectacular starry skies.

Did scientists just create synthetic life?

The SpudCell certainly resembles a living cell, but a key structure inside the cell falls short of the real thing

Prepare for dangerous air pollution in the Northeast, thanks to Minnesota wildfires

Smoke from northern Minnesota wildfires may drift over the Great Lakes and Northeast this week, bringing hazardous levels of air pollution to major cities

T. rex fossil named ‘Gus’ becomes the most expensive dinosaur sold at auction

This massive dinosaur skeleton sold for more than $50.1 million on Tuesday

What Is an Aortic Dissection?

GINA KOLATA

The condition that killed Senator Lindsey Graham is deadly, sudden and difficult to treat — “like a knife to the heart,” one expert said.

New Winged Robot Can Fly and Swim Like a Puffin

K. R. CALLAWAY

Inspired by the physical feats of diving birds, researchers have created a robot that can plunge into the water and flap back into the air.

Roger Worthington Is Suing Over a Heat Wave

KAREN ZRAICK

Roger Worthington is helping to lead a $50 billion lawsuit against oil producers. This week he’ll face powerful critics in Congress.

Researchers Claim to Have Solved the Perplexing ‘Reverse Sprinkler’ Problem That Stumped Feynman

KENNETH CHANG

Physicists have debated which way a submerged sprinkler sucking in water would spin. Careful experiments provide an answer.

NASA’s Hubble reveals a black hole hiding inside a massive star cluster in the Milky Way

Scientists have long suspected that this star cluster was a hotspot for a certain kind of black hole. But for decades, they had been unable to spot any

Experimental immune therapy shows promise against deadly childhood brain cancer

Several children who had aggressive recurrent brain tumors remained disease-free years after this treatment, according to an early-stage trial