The Conversation

We developed a way to use light to dismantle PFAS ‘forever chemicals’ – long-lasting environmental pollutants

Written by Arindam Sau, Ph.D. Candidate in Chemistry, University of Colorado Boulder

PFAS can contaminate the environment – their chemical structure makes them difficult to remove. George Pachantouris/Moment via Getty Images

Perfluoroalkyl and polyfluoroalkyl substances, or PFAS, have earned the nickname of forever chemicals from their extraordinary ability to stick around in the environment long after they’ve been...

Stop and think: An undervalued approach in a world that short-circuits thoughtful political judgment

Written by Robert B. Talisse, W. Alton Jones Professor of Philosophy, Vanderbilt University

Which serves democracy better, the conformist, quick-take answer or the independent, thoughtful one?Levi Meir Clancy/iStock via Getty Images Plus

When’s the last time you saw a pundit pause?

When President Joe Biden pardoned his son Hunter, who was convicted of three felony charges, the pardon was startling because Biden repeatedly pledged befo...

Why Quincy Jones should be prominently featured in US music education − his absence reflects how racial segregation still shapes American classrooms

Written by Philip Ewell, Professor of Music Theory, Hunter College

Quincy Jones, who died on Nov. 3, 2024, at the age of 91, was one of the most influential musicians in U.S. history.

You might think such a notable figure would factor prominently in American music classrooms. Yet my research shows that Jones, who was Black, is rarely mentioned in mainstream U.S. music curricula.

As a Black music professor, I...

Santa, maybe? Why we have different names for who ‘hurries down the chimney’ on Christmas

Written by Valerie M. Fridland, Professor of Linguistics, University of Nevada, Reno

A trade card promoting a holiday sale at the 'Bee Hive' store on Dec. 10, 1879, in New York City. Transcendental Graphics/Getty Images

Everyone has heard of Santa Claus, that chubby, white-bearded, red-suited guy who delivers Christmas presents via a reindeer-powered sleigh.

But have you never wondered how he became a man of so many names? From...

South Korea shook a presidential power grab – failure to impeach now risks damaging democracy

Written by Myunghee Lee, Assistant Professor, Michigan State University

A protester holds up an image of President Yoon Suk Yeol with the words 'Leader of insurgents,' Philip Fong/AFP via Getty Images

Days after announcing – and then rescinding – martial law in South Korea, President Yoon Suk Yeol’s future remains uncertain.

Immediate efforts to impeach the president over the attempted power grab have...

NASA’s crew capsule had heat shield issues during Artemis I − an aerospace expert on these critical spacecraft components

Written by Marcos Fernandez Tous, Assistant Professor of Space Studies, University of North Dakota

Off the coast of Baja California in December 2022, sun sparkled over the rippling sea as waves sloshed around the USS Portland dock ship. Navy officials on the deck scrutinized the sky in search of a sign. The glow appeared suddenly.

A tiny spot at first, it gradually grew to a round circle falling at a great speed from the fringes of space. It...

Vaccines and values: When you’re having a tough conversation about medicine, don’t just pile on evidence − listen to someone’s ‘moral foundations’

Written by John Rovers, Professor of Pharmacy & Health Sciences, Drake University

Listen for values and emotions, not just points you can rebut with facts.kupicoo/E+ via Getty Images

It’s that special time of year when family and friends come together to celebrate the holidays, share meals, spread cheer – and, too often, pass along their germs.

Because vaccines can save lives and prevent serious illness, health...

Why winter makes you more vulnerable to colds – a public health nurse explains the science behind the season

Written by Libby Richards, Professor of Nursing, Purdue University

Respiratory viruses rise in the wintertime, but not because people are outside in the cold. gilaxia/E+ via Getty Images

You’ve probably heard “Don’t go outside in the winter with your hair wet or without a coat; you’ll catch a cold.”

That’s not exactly true. As with many things, the reality is more complicated....

15% of global population lives within a few miles of a coast − and the number is growing rapidly

Written by Arthur Cosby, Professor of Sociology, Mississippi State University

Large parts of Mumbai face increasing flood risks from storms and sea-level rise.AP Photo/Rafiq Maqbool

Coastal populations are expanding quickly around the world. The rise is evident in burgeoning waterfront cities and in the increasing damage from powerful storms and rising sea levels. Yet, reliable, detailed data on the scale of that population...

‘Administrative law’ sounds dry but likely will be key to success or failure of Trump’s plans for government reform

Written by Sidney Shapiro, Professor of Law, Wake Forest University

Judges will likely be asked to rule on how changes to federal rules were made and what conclusions were drawn from that process.Chris Collins/The Image Bank via Getty Images

There’s a lot of speculation about what Donald Trump’s second term in the White House will bring. But there’s one thread that’s likely to tie together...