Scientific American

A 23-year-old student overturned an ancient conjecture about one of math’s simplest operations

These findings challenge a long-held belief about weapons found in female burial sites

Most adults have levels of a dangerous type of cholesterol that are above 100, but this new drug can reduce levels to around 50

U.S. officials have traced an explosive-diarrhea-causing parasite outbreak in five states to shredded lettuce served at this popular fast-food chain

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

More sunlight in the evenings doesn’t always equate to better health

Wildfire smoke may be as much as 10 times more dangerous than other forms of air pollution, research suggests

Start your morning with today’s Spellements. Create as many words as you can from our daily selection of letters—including one tied to recent science news. Play now.

A controversial new ruling from the Federal Communications Commission leaves no one responsible for regulating light pollution and other ill effects from skyrocketing numbers of satellites

Case numbers of this parasite-caused illness have exploded in the last week. An expert explains how to try and stay safe

New, never-before-seen images provide a glimpse into the secretive lives of a clouded leopard species found in the dense rainforests of Borneo and Sumatra

A new breakthrough pushes the limits of randomness, bringing a decades-old mathematical mystery closer to resolution

Duration, location, aviation: What makes the best possible view of a total solar eclipse?

SpaceX’s first attempt to launch the company’s Starship megarocket on the vehicle’s 13th flight test ended before it could properly begin, aborting just before liftoff

SpaceX is launching the latest version of its Starship megarocket for a test flight that—if all goes to plan—should look a lot like the last one

The planet LHS 1140 b lies in its star’s habitable zone, which already made it a prime candidate as a possible host for life

Shaving under a minute off our daily commutes costs Americans $22 million daily

The signature of Sak Tahn Waax, or “White-Chested Fox,” was found inscribed in a 1,000-year-old chamber beneath present-day Guatemala

The new species, Colobus congoensis, may already be endangered

The White House nominated Erica Schwartz, a former deputy surgeon general, to head the nation’s top public health agency

Erythrulose—a sugar found in raspberries—is also prevalent in a giant molecular cloud close to our galaxy’s core, scientists have discovered

Solar eclipses are a rare and brief opportunity for scientists to gather data on everything from the physics of the sun to air pressure in the upper atmosphere

This climate system is tied to more powerful typhoons, as well as famine and wildfires

Alpha-gal syndrome is increasing across the U.S., driven by lone star ticks

Cyclosporiasis case numbers have skyrocketed from several dozen nationwide in June to now more than 1,000 in the state of Michigan alone

A recent study in the journal Nature carries cosmos-quaking implications for our understanding of the universe—except a new preprint says that it’s wrong

An ancient sample shows calcite threading through this material’s cracks and pores, offering possible lessons for making modern concrete last longer

New research identifies five distinct sleep subtypes, revealing links between brain patterns, behavior and health

A best-yet measurement of one of general relativity’s most mind-boggling effects is “another feather in Einstein’s cap”

Indonesia is building a new capital city in the heart of Borneo to replace sinking Jakarta. As construction transforms one of the world’s most biodiverse rainforests, scientists and their Indigenous collaborators are racing to record the sounds of the forest—and preserve generations of ecological knowledge before it’s lost.

The U.S. Preventive Services Task Force is an independent group that offers guidance on what health screenings and medications health insurance should cover

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

Equipping spacecraft with x-ray machines could boost safety for long-duration spaceflights—like a crewed mission to Mars

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

Skygazers are in for a treat in August, as one of the most spectacular meteor showers coincides with a total solar eclipse