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The Conversation

Certain brain injuries may be linked to violent crime – identifying them could help reveal how people make moral choices

  • Written by Christopher M. Filley, Professor Emeritus of Neurology, University of Colorado Anschutz Medical Campus
imageNeurological evidence is widely used in murder trials, but it’s often unclear how to interpret it. gorodenkoff/iStock via Getty Images Plus

On Oct. 25, 2023, a 40-year old man named Robert Card opened fire with a semi-automatic rifle at a bowling alley and nearby bar in Lewiston, Maine, killing 18 people and wounding 13 others. Card was found...

Read more: Certain brain injuries may be linked to violent crime – identifying them could help reveal how...

Building with air – how nature’s hole-filled blueprints shape manufacturing

  • Written by Anne Schmitz, Associate Professor of Engineering, University of Wisconsin-Stout
imageEngineers use structures found in nature – like the honeycomb – to create lightweight, sturdy materials. Matthew T. Rader, CC BY-NC-SA

If you break open a chicken bone, you won’t find a solid mass of white material inside. Instead, you will see a complex, spongelike network of tiny struts and pillars, and a lot of empty space.

It...

Read more: Building with air – how nature’s hole-filled blueprints shape manufacturing

Bad Bunny’s Super Bowl show is part of long play drawn up by NFL to score with Latin America

  • Written by Jared Bahir Browsh, Assistant Teaching Professor of Critical Sports Studies, University of Colorado Boulder
imageBad Bunny performs on stage on Dec. 11, 2025, in Mexico City, Mexico. Emma McIntyre/Getty Images

Donald Trump, it is fair to assume, will be switching channels during this year’s Super Bowl halftime show.

The U.S. president has already said that he won’t be attending Super Bowl LX in person, suggesting that the venue, Levi’s...

Read more: Bad Bunny’s Super Bowl show is part of long play drawn up by NFL to score with Latin America

Whether it’s Valentine’s Day notes or emails to loved ones, using AI to write leaves people feeling crummy about themselves

  • Written by Julian Givi, Assistant Professor of Marketing, West Virginia University
imagePeople seem to intuitively understand something meaningful should require doing more than pushing a button or writing a prompt.design master/iStock via Getty Images

As Valentine’s Day approaches, finding the perfect words to express your feelings for that special someone can seem like a daunting task – so much so that you may feel...

Read more: Whether it’s Valentine’s Day notes or emails to loved ones, using AI to write leaves people...

Stroke survivors can counterintuitively improve recovery by strengthening their stronger arm – new research

  • Written by Candice Maenza, Research Project Manager, Associate Director of the Center for Translational Neuromechanics in Rehabilitation, Penn State
imageTreating your 'good' arm after a stroke could help you better tackle everyday activities.MoMo Productions/DigitalVision via Getty Images

Stroke survivors often face substantial and long-lasting problems with their arms. Both arms often decline together: When one arm is more severely affected by the stroke, the other becomes more difficult to use as...

Read more: Stroke survivors can counterintuitively improve recovery by strengthening their stronger arm – new...

Denmark’s generous child care and parental leave policies erase 80% of the ‘motherhood penalty’ for working moms

  • Written by Alexandra Killewald, Professor of Sociology, University of Michigan
imageA Danish mom drops her young son at his school in Copenhagen.Sergei Gapon/AFP via Getty Images

For many women in the U.S. and around the world, motherhood comes with career costs.

Raising children tends to lead to lower wages and fewer work hours for mothers – but not fathers – in the United States and around the world.

As a sociologist,...

Read more: Denmark’s generous child care and parental leave policies erase 80% of the ‘motherhood penalty’...

Trump’s climate policy rollback plan relies on EPA rescinding its 2009 endangerment finding – but will courts allow it?

  • Written by Gary W. Yohe, Professor of Economics and Environmental Studies, Wesleyan University
imageTrucks leave a smoggy Port of Long Beach in 2008, the year before the endangerment finding was released.Luis Sinco/Los Angeles Times via Getty Images

In 2009, the U.S. Environmental Protection Agency formally declared that greenhouse gas emissions, including from vehicles and fossil fuel power plants, endanger public health and welfare. The...

Read more: Trump’s climate policy rollback plan relies on EPA rescinding its 2009 endangerment finding – but...

Suspending family-based immigrant visas weakens US families and the economy

  • Written by Sothy Eng, Associate Professor of of Family and Consumer Sciences, University of Hawaii
imageThe United States has paused immigrant visa processing for 75 countries.Photo by Ufuk Celal Guzel/Anadolu via Getty Images

The U.S. Department of State has announced that starting on Jan. 21, 2026, it has indefinitely stopped issuing immigrant visas for people from 75 countries, claiming concerns that some immigrants may rely on public benefits...

Read more: Suspending family-based immigrant visas weakens US families and the economy

Is the whole universe just a simulation?

  • Written by Zeb Rocklin, Associate Professor of Physics, Georgia Institute of Technology
imageCould the Earth and everything on it – and even the whole universe – be a simulation running on a giant computer?OsakaWayne Studios/Moment via Getty Images

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to CuriousKidsUS@theconversation.com.

Is the whole universe...

Read more: Is the whole universe just a simulation?

From ski jumping to speedskating, winter sports represent physics in action

  • Written by Amy Pope, Principal Lecturer of Physics and Astronomy, Clemson University
imageAn understanding of angular momentum helps figure skaters glide across the ice and execute complex spins. AP Photo/Jeff Roberson

During the 2026 Winter Olympics, athletes will leap off ramps, slide across ice and spin through the air. These performances will look different to my students who have studied physics through sports. These feats will be...

Read more: From ski jumping to speedskating, winter sports represent physics in action

More Articles ...

  1. Life isn’t all diamonds – money and fame don’t shield the many ‘Real Housewives’ facing criminal charges
  2. 800 years after his death, the legends and legacy of Francis of Assisi endure
  3. US exit from the World Health Organization marks a new era in global health policy – here’s what the US, and world, will lose
  4. 3 things to know about Kevin Warsh, Trump’s nod for Fed chair
  5. I’m a former FBI agent who studies policing, and here’s how federal agents in Minneapolis are undermining basic law enforcement principles
  6. Short on resources, special educators are using AI – with little knowledge of the effects
  7. Grammys’ AI rules aim to keep music human, but large gray area leaves questions about authenticity and authorship
  8. From Colonial rebels to Minneapolis protesters, technology has long powered American social movements
  9. What Franco’s fascist regime in Spain can teach us about today’s America
  10. Trump’s Greenland threats reveals no-win dilemma at the heart of European security strategy
  11. US military action in Iran risks igniting a regional and global nuclear cascade
  12. How the Supreme Court might protect the Fed’s independence by using employment law in Trump v. Cook
  13. Anti-ICE protesters are following same nonviolent playbook used by people in war zones across the world to fight threats to their communities
  14. Over 100 deaths linked to January storms – here’s how to stay safe when cold, snowy weather moves in
  15. Winter storms don’t have to be deadly – here’s how to stay safe before, during and after one hits
  16. Over 100 deaths linked to January storm: Here’s how to stay safe as more cold, stormy weather moves in
  17. Americans want heat pumps – but high electricity prices may get in the way
  18. Rescheduling marijuana would be a big tax break for legal cannabis businesses – and a quiet form of deregulation
  19. America is falling behind in the global EV race – that’s going to cost the US auto industry
  20. EPA’s new way of evaluating pollution rules hands deregulators a sledgehammer and license to ignore public health
  21. Even when people’s rights are ignored, understanding the law can keep protesters engaged
  22. Aerial lidar mapping can reveal archaeological sites while overlooking Indigenous peoples and their knowledge
  23. A growing nursing shortage is made worse by nurses’ daily challenges of patients and their families rolling their eyes, yelling and striking
  24. Afghan migrants stranded in Pakistan after the US suspends refugee resettlement
  25. Colorado has emergency domestic violence shelters in only half its counties, leaving survivors without safe housing options
  26. ICE not only looks and acts like a paramilitary force – it is one, and that makes it harder to curb
  27. Not all mindfulness is the same – here’s why it matters for health and happiness
  28. Should medical marijuana be less stringently regulated? A drug policy expert explains what’s at stake
  29. It’s easy making green: Muppets continue to make a profit 50 years into their run
  30. Innovations in asthma care can improve the health of Detroiters living with this chronic disease
  31. Trump’s framing of Nigeria insurgency as a war on Christians risks undermining interfaith peacebuilding
  32. Russia’s drone pipeline: How Iran helps Moscow produce an ever-evolving unmanned fleet
  33. The end of ‘Pax Americana’ and start of a ‘post-American’ era doesn’t necessarily mean the world will be less safe
  34. PFAS are turning up in the Great Lakes, putting fish and water supplies at risk – here’s how they get there
  35. There are long-lasting, negative effects for children like Liam Ramos who are detained, or watch their parents be deported
  36. How government killings and kidnappings in Argentina drove mothers to resist and revolt − and eventually win
  37. Greenland’s Inuit have spent decades fighting for self-determination
  38. The pioneering path of Augustus Tolton, the first Black Catholic priest in the US – born into slavery, he’s now a candidate for sainthood
  39. Gifts of gym memberships and Botox treatments can lead to hurt feelings – and bad reviews for the businesses
  40. White men held less than half the board seats on the top 50 Fortune list for the third straight year — but their numbers are rising
  41. Colorado ski resorts got some welcome snowfall from Winter Storm Fern, but not enough to turn a dry and warm winter around
  42. How fire, people and history shaped the South’s iconic longleaf pine forests
  43. Oversalting your sidewalk or driveway harms local streams and potentially even your drinking water – 3 tips to deice responsibly
  44. Can shoes alter your mind? What neuroscience says about foot sensation and focus
  45. All foods can fit in a balanced diet – a dietitian explains how flexibility can be healthier than dieting
  46. NASA’s Artemis II crewed mission to the Moon shows how US space strategy has changed since Apollo – and contrasts with China’s closed program
  47. Repeated government lying, warned Hannah Arendt, makes it impossible for citizens to think and to judge
  48. Minnesota raises unprecedented constitutional issues in its lawsuit against Trump administration anti-immigrant deployment
  49. Groundhogs are lousy forecasters but valuable animal engineers – and an important food source
  50. A more complete Latin American history, including centuries of US influence, helps students understand the complexities surrounding Nicolás Maduro’s arrest