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Prime numbers, the building blocks of mathematics, have fascinated for centuries − now technology is revolutionizing the search for them

  • Written by Jeremiah Bartz, Associate Professor of Mathematics, University of North Dakota
imagePrime numbers are numbers that are not products of smaller whole numbers.Jeremiah Bartz

A shard of smooth bone etched with irregular marks dating back 20,000 years puzzled archaeologists until they noticed something unique – the etchings, lines like tally marks, may have represented prime numbers. Similarly, a clay tablet from 1800 B.C.E. insc...

Read more: Prime numbers, the building blocks of mathematics, have fascinated for centuries − now technology...

Hurricane season is here, but FEMA’s policy change could leave low-income areas less protected

  • Written by Ivis García, Associate Professor of Landscape Architecture and Urban Planning, Texas A&M University
imageHurricane Harvey inundated the Cottage Grove neighborhood of Houston in 2018.Scott Olson/Getty Images

When powerful storms hit your city, which neighborhoods are most likely to flood? In many cities, they’re typically low-income areas. They may have poor drainage, or they lack protections such as seawalls.

New Orleans’ Lower Ninth Ward,...

Read more: Hurricane season is here, but FEMA’s policy change could leave low-income areas less protected

Millions of US children have parents with substance use disorder, and the consequences are staggering − new research

  • Written by Ty Schepis, Professor of Psychology, Texas State University
imageAlcohol is the most common substance misused by parents.igorr1/iStock via Getty Images Plus

About 1 in 4 U.S. children – nearly 19 million – have at least one parent with substance use disorder. This includes parents who misuse alcohol, marijuana, prescription opioids or illegal drugs. Our estimate reflects an increase of over 2 million...

Read more: Millions of US children have parents with substance use disorder, and the consequences are...

Are hegemonies a relic of the past? The role of coercion and consent in global domination

  • Written by Andrew Latham, Professor of Political Science, Macalester College
imageGlobal big beasts have a tendency to put their foot down.Alexander W Helin/Getty Images

The era of U.S. hegemony has come to an end – or so declare headlines emanatingeverywherefrom Tehranto Washington. But what does that mean?

The concept of hegemony has been central to international relations since the advent of the field. In addition to...

Read more: Are hegemonies a relic of the past? The role of coercion and consent in global domination

The biggest barrier to AI adoption in the business world isn’t tech – it’s user confidence

  • Written by Greg Edwards, Adjunct Lecturer, Missouri University of Science and Technology
imageBelieve in your own decision-making.Feodora Chiosea/Getty Images Plus

The Little Engine That Could wasn’t the most powerful train, but she believed in herself. The story goes that, as she set off to climb a steep mountain, she repeated: “I think I can, I think I can.”

That simple phrase from a children’s story still holds a...

Read more: The biggest barrier to AI adoption in the business world isn’t tech – it’s user confidence

Solar panels’ shade helps boost Colorado grassland productivity in dry years

  • Written by Matthew Sturchio, Postdoctoral Research Associate in Natural Resources and the Environment, Cornell University; Faculty Afffiliate in Ecology, Colorado State University
imageSolar panels on grasslands can generate electricity and useful forage or wildlife habitat.Matthew Sturchio, CC BY-ND

Grasses growing in the shade of a solar array were only a little less productive than those growing nearby in open grassland during years of average and above-average rainfall – but in a dry year, the shaded plants grew much...

Read more: Solar panels’ shade helps boost Colorado grassland productivity in dry years

Surge of ICE agreements with local police aim to increase deportations, but many police forces have found they undermine public safety

  • Written by W. Carsten Andresen, Associate Professor of Criminal Justice, St. Edward's University
imageA Kinney County sheriff's deputy arrests an undocumented immigrant who was pulled over in March 2023 in Brackettville, Texas.Jabin Botsford/The Washington Post via Getty Images

During his first few months in office, President Donald Trump has been establishing a framework for deporting undocumented immigrantsen masse. It’s something he has...

Read more: Surge of ICE agreements with local police aim to increase deportations, but many police forces...

Trump’s white genocide claims about South Africa have deep roots in American history

  • Written by Alex Hinton, Distinguished Professor of Anthropology; Director, Center for the Study of Genocide and Human Rights, Rutgers University - Newark
imagePresident Donald Trump shows printed news articles during a meeting with South African President Cyril Ramaphosa at the White House on May 21, 2025. Demetrius Freeman/The Washington Post via Getty Images

President Donald Trump says there is a genocide of white people taking place in South Africa, meaning that Black South Africans are deliberately...

Read more: Trump’s white genocide claims about South Africa have deep roots in American history

Beyond the backlash: What evidence shows about the economic impact of DEI

  • Written by Rodney Coates, Professor of Critical Race and Ethnic Studies, Miami University
imageDEI has a long history.Nora Carol Photography via Getty Images

Few issues in the U.S. today are as controversial as diversity, equity and inclusion – commonly referred to as DEI.

Although the term didn’t come into common usage until the 21st century, DEI is best understood as the latest stage in a long American project. Its egalitarian...

Read more: Beyond the backlash: What evidence shows about the economic impact of DEI

Like today’s selfie-takers, Walt Whitman used photography to curate his image – but ended up more lost than found

  • Written by Trevin Corsiglia, PhD Candidate in Comparative Literature and Thought, Washington University in St. Louis
imageThough Walt Whitman insisted to friends that the moth was real – and landed on his finger spontaneously – it was a cardboard prop.Library of Congress

When I read and study Walt Whitman’s poetry, I often imagine what he would’ve done if he had a smartphone and an Instagram account.

Unlike many of his contemporaries, the poet...

Read more: Like today’s selfie-takers, Walt Whitman used photography to curate his image – but ended up more...

More Articles ...

  1. The rise and fall – and rise again – of white-tailed deer
  2. What Peru’s Virgen de la Puerta represents about unity and inclusion
  3. Weaponized storytelling: How AI is helping researchers sniff out disinformation campaigns
  4. There’s no evidence work requirements for Medicaid recipients will boost employment, but they are a key piece of Republican spending bill
  5. How trafficked American guns fuel Mexico’s cartel violence – podcast
  6. More Colorado workplaces are becoming safe places for employees in recovery
  7. RFK Jr. says annual COVID-19 shots no longer advised for healthy children and pregnant women – a public health expert explains the new guidance
  8. 3 things to watch as South Koreans head toward the polls following turbulent political period
  9. Guns bought in the US and trafficked to Mexican drug cartels fuel violence in Mexico and the migration crisis
  10. Billy Joel has excess fluid in his brain – a neurologist explains what happens when this protective liquid gets out of balance
  11. Chronic stress contributes to cognitive decline and dementia risk – 2 healthy-aging experts explain what you can do about it
  12. Trump wants to cut funding to sanctuary cities and towns – but they don’t actually violate federal law
  13. The hidden power of cultural exchanges in countering propaganda and fostering international goodwill
  14. Public health and private equity: What the Walgreens buyout could mean for the future of pharmacy care
  15. A common parasite can decapitate human sperm − with implications for male fertility
  16. When Elvis and Ella were pressed onto X-rays – the subversive legacy of Soviet ‘bone music’
  17. High electricity prices zapping your budget? Here are 5 ways to save
  18. Critical minerals don’t belong in landfills – microwave tech offers a cleaner way to reclaim them from e-waste
  19. Texas’ annual reading test adjusted its difficulty every year, masking whether students are improving
  20. Anti-trans measures don’t just target transgender men and women – a sociologist explains how ‘male’ or ‘female’ categories miss the mark for nonbinary Americans
  21. Trump’s West Point speech brought partisanship to the home of the US military − 3 essential reads
  22. Trump’s West Point speech brought partisanship to the home of the US military − 2 essential reads
  23. Queer country: LGBTQ+ musicians are outside the spotlight as Grand Ole Opry turns 100
  24. Could a bold anti-poverty experiment from the 1960s inspire a new era in housing justice?
  25. Christianity has long revered saints who would be called ‘transgender’ today
  26. Pope Leo XIV is the first member of the Order of St. Augustine to be elected pope – but who are the Augustinians?
  27. Air traffic controller shortages in Newark and other airports partly reflect long, intense training − but university-based training programs are becoming part of the solution
  28. Mountain chickadee chatter: Scientists are decoding the songbird’s complex calls
  29. For opioid addiction, treatment underdosing can lead to fentanyl overdosing – a physician explains
  30. Managing forests and other ecosystems under rising threats requires thinking across wide-ranging scenarios
  31. Europeans are concerned that the US will withdraw support from NATO. They are right to worry − Americans should, too
  32. Why some towns lose local news − and others don’t
  33. MAHA report on children’s health highlights harms of ultraprocessed foods – a food scientist explains the research
  34. Harvard fights to keep enrolling international students – 4 essential reads about their broader impact
  35. How does a person become famous when they’re just a kid?
  36. 5 years after George Floyd’s murder: How the media narrative has changed around the killing and the protests that followed
  37. Supreme Court’s one-sentence order closes the door to Catholic charter school – but leaves it open for future challenges
  38. Can you upload a human mind into a computer? A neuroscientist ponders what’s possible
  39. Here’s how we figured the number of guns illegally trafficked from the US across the border to Mexico
  40. Gun trafficking from the US to Mexico: The drug connection
  41. US gun trafficking to Mexico: Independent gun shops supply the most dangerous weapons
  42. Split Supreme Court blocks Oklahoma’s Catholic charter school − but future cases could hinge on whether charters are, at their core, public or private
  43. US solar manufacturers lag skyrocketing market demand
  44. In 2025, Tornado Alley has become almost everything east of the Rockies − and it’s been a violent year
  45. How abortion laws focusing on fetal viability miss the mark on women’s experiences
  46. From furry friends to fish, turning up the heat helps animals fight germs − how Mother Nature’s cure offers humans a lesson on fever
  47. Like many populist leaders, Trump accuses judges of being illegitimate obstacles to safety and democracy
  48. Golden Dome: An aerospace engineer explains the proposed nationwide missile defense system
  49. Golden Dome: An aerospace engineer explains the proposed US-wide missile defense system
  50. Israelis have a skewed view on extent of Gaza’s hunger plight − driven by censorship and media that downplay humanitarian crisis