Problem With Artemis Rocket Will Delay NASA’s Moon Mission
Science, Today
The rocket will be removed from the launchpad in order for technicians to investigate and fix a malfunctioning helium system.
‘Very Successful Day’: NASA Completes Artemis II Launchpad Test
Video, Yesterday
NASA successfully completed a rehearsal to launch the Artemis II rocket on Thursday. The mission would send astronauts around the Moon’s orbit for the first time in more than 50 years.
NASA Conducts Successful Launchpad Test of the Massive Artemis Rocket
Science, Yesterday
The next moon mission, carrying four astronauts, could launch as soon as early March.
World Cup Crowds Could Be Targeted. This Team Worked to Keep Them Safe.
Science, Yesterday
Michael Silevitch leads a research center dedicated to protecting busy public spaces. Last April, he was instructed to “end all work” immediately.
Trump Says He Will Release Files on Aliens and U.F.O.s
U.S., Yesterday
President Trump had lashed out at former President Barack Obama earlier Thursday for telling a podcaster that aliens were real.
Investigators Blame NASA and Boeing for Starliner Failures
Science, Yesterday
Technical and oversight problems left two astronauts aboard the International Space Station for months longer than had been expected.
La clave de la longevidad podría estar en el interior de nuestras células
En español, February 19
¿Por qué los influentes de la salud están obsesionados con las mitocondrias?
The Key to Longevity May Be Found Inside Our Cells
Well, February 19
Why health influencers are obsessed with mitochondria.
How Microbes Got Their Crawl
Science, February 18
In the oceans and on land, scientists are discovering rare, transitional organisms that bridge the gap between Earth’s simplest cells and today’s complex ones.
Lake Erie’s Storm Surges Become More Extreme
Science, February 17
Officials are designing new ways to protect the shorelines from sudden flooding and longer storm seasons.
Could an Electronic Coach Help Ski Jumpers Leap Farther?
Science, February 15
Future Olympic prospects are testing a device that can give them corrective advice in real time as they hurtle into the air.
These Unsinkable Tubes Could Help Harvest Energy From the Ocean
Science, February 15
Researchers developed aluminum structures that trap air bubbles, making them able to float perpetually in even the harshest environments.
Alfred Blumstein, Who Transformed the Study of Crime, Dies at 95
Science, February 15
An engineer by training, he used systems theory and quantitative analysis to examine criminal behavior, revealing the systemic patterns of crime.
What a Speech Reveals About Trump’s Plans for Nuclear Weapons
Interactive, February 14
A top arms diplomat at the State Department recently laid out what might come next as Washington upends decades of federal policies on nuclear proliferation.
Constant Sexual Aggression Drives Female Tortoises to Walk Off Cliffs
Science, February 14
On a remote island in North Macedonia, male Hermann’s tortoises outnumber females 19 to 1, an imbalance driving the population to extinction.
Elephant Bone in Spain May Be Proof of Hannibal’s Tanks With Trunks
Science, February 13
Archaeologists say a 2,200-year-old specimen is the first direct evidence of how the Carthaginian war machine used the giant mammals in the Punic Wars.
An Elephant Is Blind Without Its Whiskers
Science, February 12
There are about 1,000 tiny hairs on an elephant’s rugged trunk, all designed to help the animal feel, a new study found.
TV, It’s Not Just for Humans Anymore
Science, February 12
Videos aimed at pets are drawing millions of views. But who’s actually watching?
This Comet Stopped Spinning. Then It Started Rotating Backward.
Science, February 12
The unusual event, never seen before, might be a way small comets are “blown to bits” in the solar system.
Elon Musk Wants to Build an A.I. Satellite Factory on the Moon
Technology, February 11
In a meeting with employees at his company xAI, Mr. Musk revealed a vision for a facility that includes a giant catapult to launch his satellites into space.
Baboon Sibling Rivalry Suggests Monkeys Feel Jealousy Like People
Science, February 11
Young primates in a southern African nature park were observed to constantly interfere when their mother was giving attention to a younger brother or sister.
Lost Soviet Moon Lander May Have Been Found
Science, February 10
Two research teams have identified possible landing sites for Luna 9, the first human-made object to safely reach the lunar surface. “One of them is wrong,” an expert said.
These Birds Are of Different Feathers, but They Flock Together
Science, February 9
Researchers and volunteers in Texas documented birds of different species preening one another. Experts say the behavior may be more common than documented.
Why Mountain Lions in California Are Threatened
Video, February 9
Six subpopulations of mountain lions in California face mounting threats, including habitat fragmentation from highways, urban sprawl, and wildfires, as well as widespread rodenticide poisoning. Loren Elliott, a photojournalist for The New York Times, shows how he documents these elusive animals.
War Came to Ukraine and Its Dogs Are Not the Same
Science, February 8
Researchers discovered surprising changes to former pets along the front line of combat with Russia.
These Mathematicians Are Putting A.I. to the Test
Science, February 7
Large language models struggle to solve research-level math questions. It takes a human to measure just how poorly they perform.
Elon Musk Is Betting Another Tech Conglomerate (His) Can Win Over Wall St.
Technology, February 7
The billionaire’s decision to merge his A.I. start-up with his rocket company will test investors’ interest in giant combinations of unalike businesses.
Rebuilding the Lighthouse of Alexandria, Block by Virtual Block
Science, February 6
An ancient skyscraper considered the seventh wonder of the world crumbled to ruin centuries ago. Now an ambitious archaeological project aims to reassemble it in 3-D.
At a Bonobo’s ‘Tea Party,’ Scientists Find Hints of Imagination
Science, February 5
In a playtime experiment, scientists found that apes, our closest living relatives, have the capacity for make-believe, too.
Rare Giant Phantom Jelly Spotted in Deep Waters Near Argentina
Video, February 5
Scientists had a rare encounter with a giant phantom jelly during a dive off of Argentina in the Atlantic Ocean.
This Giant Phantom Jelly Won’t Eat You. Maybe.
Science, February 5
During a dive off Argentina, scientists documented a rare jellyfish discovered a little over a century ago and seldom seen since, as well as the fish that keep it company.
He Built a Server to Protect Indigenous Health Data
Science, February 5
Joseph Yracheta was in charge of a repository that compiled and protected tribal health data. Then its funding was cut.
People in This San Francisco Suburb Would Like the Earth to Just Stop Shaking, Please
U.S., February 5
San Ramon, Calif., has been rattled by dozens of small earthquakes in recent months. Even in a region used to regular shaking, it’s been a lot.
‘Starman’ Review: What’s Really Out There?
Movies, February 4
The theories laid out by the aerospace engineer Gentry Lee in this new documentary may blow your mind.
NASA Delays Artemis II Rocket Launch Until at Least March
Video, February 3
NASA delayed the Artemis II mission on Tuesday after detecting hydrogen leaks. The mission was scheduled to circle the moon with four astronauts.
NASA Delays Artemis II Moon Launch to March After Hydrogen Leaks
Science, February 3
The agency did not complete a practice countdown for a mission that would be the first to send people around the moon in more than 50 years.
Elon Musk fusiona SpaceX con su empresa de IA
En español, February 2
El acuerdo entremezcla aún más las empresas de Musk y crea la empresa privada con mayor valoración del planeta.
Elon Musk Merges SpaceX With His A.I. Start-Up xAI
Business, February 2
The deal further intermingles Mr. Musk’s companies and creates the most valuable private company on earth.
Snow Drought in the West Reaches Record Levels
Science, February 1
Warm temperatures and extremely low snowfall threaten water resources for the year.
Jeff Bezos’s Rocket Company Pauses Space Tourism to Focus on the Moon
Science, January 30
The New Shepard rocket from Blue Origin, which brought 92 people on trips to the edge of space, will cease flying for at least two years as the company prioritizes NASA contracts.
Something Dark Is Growing on Greenland’s Ice. And Melting It Faster.
Climate, January 30
New studies show how algae grows on ice and snow, creating “dark zones” that exacerbate melting in the consequential region.
Researchers Are Using A.I. to Decode the Human Genome
Science, January 28
AlphaGenome is a leap forward in the ability to study the human blueprint. But the fine workings of our DNA are still largely a mystery.
How to View the Artemis II Moon Launch
Travel, January 28
The first crewed mission around the moon in more than 50 years is coming up. Here’s how to see it at sites in and around the Kennedy Space Center in Florida.
Gladys West, Unsung Figure in Development of GPS, Dies at 95
Science, January 27
As a Navy mathematician in the 1950s and beyond, she played an unheralded but foundational role in making possible the global satellite-based mapping system.
Peter H. Duesberg, 89, Renowned Biologist Turned H.I.V. Denialist, Dies
Science, January 27
His pioneering work on the origins of cancer was later overshadowed by his contrarian views, notably his rejection of the established theory that H.I.V. causes AIDS.
You Wouldn’t Want to Butt Heads With This Small Dinosaur
Science, January 27
A newly discovered raptor had a knobby bump on its head, suggesting that, like some larger dinosaurs, it engaged in competitive head bashing.
Thomas Fogarty, 91, Who Helped Revolutionize Vascular Surgery, Dies
Science, January 26
Drawing on his love of fly-fishing, he developed a balloon catheter that removes blood clots from patients’ limbs in a minimally invasive way. It has saved millions of lives.
A New Way to Flirt: Dazzle Potential Mates With Patterns Invisible to Humans
Science, January 26
Cuttlefish attract prospective sexual partners by creating a pattern on their skin, based on the orientation of light waves.
430,000-Year-Old Wooden Tools Are the Oldest Ever Found
Science, January 26
The finding, along with the discovery of a 500,000-year-old hammer made of bone, indicates that our human ancestors were making tools even earlier than archaeologists thought.
Edith Flanigen, Award-Winning Research Chemist, Dies at 96
Science, January 24
She and her staff at Union Carbide created synthetic materials that improved various industrial processes, including purifying water. She also developed a way to make emeralds.
Pedro Sanchez, Who Helped Feed the Developing World, Dies at 85
Science, January 23
A soil scientist, he partnered with the United Nations and other organizations to bring productive agricultural practices to uncooperative terrain.
Louis E. Brus, Nobel Laureate Who Illuminated the Nanoworld, Dies at 82
Science, January 23
He accidentally created some of the first quantum dots, tiny semiconductors that now power many electronics.
How the Pandemic Lockdowns Changed a Songbird’s Beak
Science, December 15
For ecologists, the Covid-19 pandemic has presented a remarkable natural experiment in what can happen to wild animals when humans stay home.
America Is Abandoning One of the Greatest Medical Breakthroughs
Opinion, August 18
Giving up on mRNA is a dangerous decision.
F.D.A. Approves Novavax Covid Vaccine With Stricter New Conditions
Science, May 17
The agency narrowed who can get the shot and added new study requirements that could cost the company tens of millions.
Genetic Study Retraces the Origins of Coronaviruses in Bats
Science, May 7
As China and the United States trade charges of a lab leak, researchers contend in a new paper that the Covid pandemic got its start, like a previous one, in the wildlife trade.
On New Website, Trump Declares Lab Leak as ‘True Origins’ of Covid
Science, April 18
The White House has thrown its weight behind the lab leak theory, an idea that has divided intelligence agencies.
American Children’s Reading Skills Reach New Lows
National, January 29
With little post-pandemic recovery, experts wonder if screen time and school absence are among the causes.
U.S. Students Posted Dire Math Declines on an International Test
National, December 4
On the test, American fourth and eighth graders posted results similar to scores from 1995. It was a sign of notable stagnation, even as other countries saw improvements.
Hoping for Allies Among Trump’s Health Picks, Pharma Faces Hostility
Science, November 27
Robert F. Kennedy Jr. and other candidates for top health posts are at odds with the drug industry, setting the stage for tense battles over regulatory changes.
The Education Crisis Neither Candidate Will Address
Op Ed, October 9
Covid learning loss and chronic absenteeism aren’t going to fix themselves
Fauci Grilled by Lawmakers on Masks, Vaccine Mandates and Lab Leak Theory
Science, June 3
Dr. Fauci testified before a House panel investigating Covid’s origins. The panel found emails suggesting that his aides were skirting public records laws.
Supernova or Coronavirus: Can You Tell the Difference?
Science, May 21
A scientist finds beauty in the “visual synonyms” that exist in images seen through microscopes and telescopes.
U.S. Tightens Rules on Risky Virus Research
Science, May 7
A long-awaited new policy broadens the type of regulated viruses, bacteria, fungi and toxins, including those that could threaten crops and livestock.
Republicans Step Up Attacks on Scientist at Heart of Lab Leak Theory
Science, May 1
A heated hearing produced no new evidence that Peter Daszak or his nonprofit, EcoHealth Alliance, were implicated in the Covid outbreak.
Biotech Exec Gets 7 Years in Prison for False Claims About Rapid Covid-19 Test
Express, April 13
Prosecutors said Keith Berman falsely claimed he had invented a blood test that could detect Covid-19 in 15 seconds. His lawyer said he had put “genuine effort” into developing such a test.
¿Cuál es la siguiente fase del coronavirus?
En español, March 23
Los científicos que estudian la evolución continua del virus y las respuestas inmunitarias del organismo esperan evitar un rebrote y comprender mejor la covid prolongada.
What’s Next for the Coronavirus?
Science, March 22
Scientists studying the virus’s continuing evolution, and the body’s immune responses, hope to head off a resurgence and to better understand long Covid.
Where the Wild Things Went During the Pandemic
Science, March 18
A new study of camera-trap images complicates the idea that all wildlife thrived during the Covid lockdowns.
A Fern’s ‘Zombie’ Fronds Sprout Unusual Roots
Science, February 25
In the Panamanian rainforest, scientists found the first known plant species to transform decaying tissue into a new source of nutrients.
Before the Coronavirus Pandemic, Overlooked Clues From Chinese Scientists
Science, January 18
Newly released documents indicate that a U.S. genetic database had received the sequence of the coronavirus two weeks before it was made public by others.
Omicron, Now 2 Years Old, Is Not Done With Us Yet
Science, November 21
The dominant variant of the coronavirus has proved to be not only staggeringly infectious, but an evolutionary marvel.
Lab Leak Fight Casts Chill Over Virology Research
Science, October 16
Scientists doing “gain-of-function” research said that heightened fears of lab leaks are stalling studies that could thwart the next pandemic virus.
Inside a High-Security Virus Lab
Interactive, October 16
High-security labs, like this one at Penn State, are at the center of a debate over research that alters viruses to make them more dangerous.
The Nation’s Top-Performing Public School System
N Y T Now, October 10
Schools run by the Defense Department educate 66,000 children of civilian employees and service members.
We Can Fight Learning Loss Only With Accountability and Action
Op Ed, September 5
Let’s bring back an era of accountability.
U.S. Students’ Progress Stagnated Last School Year, Study Finds
National, July 11
Despite billions in federal aid, students are not making up ground in reading and math: “We are actually seeing evidence of backsliding.”
What the New, Low Test Scores for 13-Year-Olds Say About U.S. Education Now
National, June 21
The results are the federal government’s last major data release on the academic effects of the coronavirus pandemic.
Wild Mammals Roamed When Covid Kept Humans Home
Science, June 8
Strict pandemic lockdowns may have allowed animals to range more widely and spend time closer to roads, a new study suggests.
Schools Received Billions in Stimulus Funds. It May Not Be Doing Enough.
Washington, June 5
Pandemic aid was supposed to help students recover from learning loss, but results have been mixed.
Many Women Have an Intense Fear of Childbirth, Survey Suggests
Science, May 16
Tokophobia, as it’s called, is not often studied in the United States. But a new survey finds that it may be very common, particularly among Black women and in disadvantaged communities.
We Could Easily Make Risky Virological Research Safer
Op Ed, May 10
Lab safety doesn’t need to torpedo scientific progress.
It’s Not Just Math and Reading: U.S. History Scores for 8th Graders Plunge
National, May 3
The latest test results continue a nearly decade-long decline. Try a sample quiz to test your knowledge.
Scientist Revisits Data on Raccoon Dogs and Covid, Stressing the Unknowns
Science, April 29
After analyzing genetic data swabbed from a Wuhan market in early 2020, a virologist said it was unclear if animals for sale there had been infected.
Can Africa Get Close to Vaccine Independence? Here’s What It Will Take.
Science, April 25
Leaders on the continent have vowed that if there is another pandemic, they won’t be shut out of the vaccine market.
China Publishes Data Showing Raccoon Dog DNA at Wuhan Market
Science, April 5
Scientists from the Chinese C.D.C. confirmed that DNA from raccoon dogs and other animals susceptible to the coronavirus was found at the market in early 2020.
Wuhan Market Samples Contained Covid and Animal Mixtures, Report Says
Science, March 21
In a much-anticipated study, experts described a swab that was positive for the coronavirus and contained loads of genetic material from raccoon dogs.
New Data Links Pandemic’s Origins to Raccoon Dogs at Wuhan Market
Science, March 17
Genetic samples from the market were recently uploaded to an international database and then removed after scientists asked China about them.
Biden Proposal Would Ban Online Prescribing of Certain Drugs
Science, February 25
Some medications, like Ritalin and Vicodin, would require an in-person doctor’s visit under the new rules, a reaction to the pandemic-era rise of telemedicine.
After Long Delay, Moderna Pays N.I.H. for Covid Vaccine Technique
Science, February 23
Moderna has paid $400 million to the government for a chemical technique key to its vaccine. But the parties are still locked in a high-stakes dispute over a different patent.
She Helped Unlock the Science of the Covid Vaccine
Science, February 9
Kizzmekia Corbett helped lead a team of scientists contributing to one of the most stunning achievements in the history of immunizations: a highly effective, easily manufactured vaccine against Covid-19.
When Animals Are Used in Research
Letters, January 31
Readers discuss experimentation on lab animals. Also: Racism in America; preparing for the next pandemic; maternal deaths; Amazon’s donations.
Expert Panel Votes for Stricter Rules on Risky Virus Research
Science, January 27
The White House will decide whether to adopt the panel’s recommendations on so-called gain of function experiments.
N.I.H. Did Not Properly Track a Group Studying Coronaviruses, Report Finds
Science, January 26
An internal federal watchdog said that the health agency had not given adequate oversight to EcoHealth Alliance, which had been awarded $8 million in grants.
Health Experts Warily Eye XBB.1.5, the Latest Omicron Subvariant
Science, January 7
A young version of the coronavirus makes up one-quarter of Covid cases across the United States and over 70 percent of new cases in the Northeast.
Your Tuesday Briefing: China’s Space Push
N Y T Now, December 12
Plus China’s vaccination pivot and the year’s most stylish “people.”
Your Monday Briefing: The World Cup Semifinals Loom
N Y T Now, December 11
Plus, China’s sluggish economy and the arrest of the Lockerbie bombing suspect.
Ómicron cumple un año. Así ha evolucionado
en Español, November 29
Al cumplirse el aniversario del descubrimiento de la variante, los expertos en virología siguen intentando ponerse al día con la rápida transformación de ómicron.
Happy Birthday, Omicron
Science, November 26
One year after the variant’s discovery, virologists are still scrambling to keep up with Omicron’s rapid evolution.
The Pandemic Generation Goes to College. It Has Not Been Easy.
National, November 1
Students missed a lot of high school instruction. Now many are behind, especially in math, and getting that degree could be harder.
Pandemic Learning Loss Is Not an Emergency
Op Ed, October 29
In a vacuum, test score declines look like bad news. But none of this happened in a vacuum.
G.O.P. Senator’s Report on Covid Origins Suggests Lab Leak, but Offers Little New Evidence
Science, October 27
The report, signed by Senator Richard Burr, foreshadows a new wave of political wrangling over Covid’s origins if Republicans gain control of the House or Senate.
Math Scores Fell in Nearly Every State, and Reading Dipped on National Exam
National, October 24
The results, from what is known as the nation’s report card, offer the most definitive picture yet of the pandemic’s devastating impact on students.
Lab Manipulations of Covid Virus Fall Under Murky Government Rules
Science, October 22
Mouse experiments at Boston University have spotlighted an ambiguous U.S. policy for research on potentially dangerous pathogens.
How One School Is Beating the Odds in Math, the Pandemic’s Hardest-Hit Subject
National, October 15
Benjamin Franklin Elementary in Connecticut overhauled the way it taught — and the way it ran the classroom. Every minute counted.
Russia’s New Onslaught Against Ukraine
Letters, October 10
Readers respond to the latest Russian attacks in Ukraine. Also: The wonders of math; pandemic spending; Republicans and crime.
¿Quién tenía la culpa de que los alumnos de la Universidad de Nueva York estuvieran reprobando química orgánica?
en Español, October 5
Maitland Jones, un profesor respetado, defendió sus estándares. Pero los estudiantes hicieron un reclamo y la universidad lo despidió.
At N.Y.U., Students Were Failing Organic Chemistry. Who Was to Blame?
National, October 3
Maitland Jones Jr., a respected professor, defended his standards. But students started a petition, and the university dismissed him.
N.Y.C. Children Held Ground in Reading, but Lagged in Math, Tests Show
Metro, September 28
The first standardized test results that capture how most city schoolchildren did during the pandemic offered a mixed picture.
¿La variante ómicron llegó para quedarse?
en Español, September 27
La decimotercera variante con nombre del coronavirus parece tener una capacidad sorprendente para evolucionar con nuevas particularidades.
Why Omicron Might Stick Around
Science, September 22
Omicron, the 13th named variant of the coronavirus, seems to have a remarkable capacity to evolve new tricks.
The Quiet Cost of Family Caregiving
Science, September 4
Many employees reduce their hours or stop working to help ailing family members. But it may be years before they fully return to the work force, studies indicate.
The Pandemic Erased Two Decades of Progress in Math and Reading
National, September 1
The results of a national test showed just how devastating the last two years have been for 9-year-old schoolchildren, especially the most vulnerable.
How Bad Is the Teacher Shortage? Depends Where You Live.
National, August 29
Urgently needed: teachers in struggling districts, certified in math or special education. Perks: maybe a pay raise, or how about a four-day week?
Wastewater Disease Tracking: A Photographic Journey From the Sewer to the Lab
Interactive, August 17
Here’s how a scrappy team of scientists, public health experts and plumbers is embracing wastewater surveillance as the future of disease tracking.
El viaje evolutivo de la COVID-19 ha sido funesto e impresionante
en Español, August 11
El coronavirus, como muchos otros virus, evoluciona deprisa. ¿Los seres humanos y su ingenio podrían adaptarse más rápido a él?
We Are Still in a Race Against the Coronavirus
Op Ed, August 10
Human ingenuity must keep up with the coronavirus.
Combined nasal and throat testing swabs would detect more Omicron infections, two papers suggest.
Science, July 22
The papers, which have not yet been published in scientific journals, suggest that testing just a single type of sample is likely to miss a large share of infections.
Students Are Learning Well Again. But Full Recovery? That’s a Long Way Off.
National, July 19
A new report estimates that it may take students at least three to five years to recover from the pandemic. Federal relief money will most likely have run out by then.
Did Nature Heal During the Pandemic ‘Anthropause’?
Science, July 16
Covid precautions created a global slowdown in human activity — and an opportunity to learn more about the complex ways we affect other species.
Bat Virus Studies Raise Questions About Laboratory Tinkering
Science, July 15
Working in a laboratory in Paris, scientists gave a close relative of the Covid virus the chance to evolve to be more like its cousin.
The pandemic kept many children less active around the world, researchers find.
Express, July 11
Pandemic shutdowns and restrictions led to a 20 percent drop in average daily physical activity among children and adolescents, a new analysis shows.
The U.S. government will buy 3.2 million doses of Novavax’s Covid vaccine.
Science, July 11
The vaccine has not yet been authorized but is expected to be soon.
Think All Viruses Get Milder With Time? Not This Rabbit-Killer.
Science, June 20
The myxoma virus, fatal to millions of Australian rabbits, is a textbook example of the unexpected twists in the evolution of viruses and their hosts.
Unexplained hepatitis is not more common in U.S. children than before the pandemic, a C.D.C. study suggests.
Science, June 14
Officials have also been trying to determine whether the cases represent a new phenomenon or are simply a new recognition of one that has long existed; there have always been a subset of pediatric hepatitis cases with no clear cause.
Mysteries Linger About Covid’s Origins, W.H.O. Report Says
Science, June 9
“The lack of political cooperation from China continues to stifle any meaningful progress,” one expert said.
Reckoning With a Pandemic, as a Doctor and a Human
Book Review, June 8
In his essay collection “Virology,” Joseph Osmundson examines the myriad ways we coexist with viruses.
Two new versions of Omicron are gaining ground in the U.S., according to C.D.C. estimates.
Science, June 8
The spread of the subvariants adds more uncertainty to the trajectory of the pandemic in the United States.
He Helped Cure the ‘London Patient’ of H.I.V. Then He Turned to Covid.
Special Sections, June 6
Ravindra Gupta, who led the efforts that resulted in the second case of a patient being cured of H.I.V., was drawn into pandemic research.
In Florida, Social-Emotional Learning + Math = Rejection
Letters, May 2
Readers discuss the Florida Department of Education’s objections to some of the topics in math textbooks. Also: The Ukraine war; mask mandates.