Traffic at an intersection.

In the wake of COVID-19, traffic congestion dropped but crash severity soared

July 12, 2023

Studying speed, traffic and crash data on California highways during the initial COVID-19 response, CU Boulder researchers found that the frequency of severe crashes increased due to lower congestion and higher speeds.

A woman's face, analyzed by facial recognition software

Why new facial-recognition airport screenings are raising concerns

July 11, 2023

At least 25 U.S. airports now use facial recognition software to determine you are who you say you are, but some fear the artificial intelligence systems will exacerbate discrimination. Morgan Klaus Scheuerman, an AI ethicist, explains why people are concerned.

A graphic show a Threads and Twitter logo.

Threads surging, but mass migration from Twitter likely to remain an uphill battle

July 10, 2023

Twitter’s move on July 1 to limit the number of tweets users can see in a day was the latest in a series of decisions that has spurred millions of users to sign up with alternative microblogging platforms. Read more from CU Boulder’s Casey Fiesler on The Conversation.

A laptop computer and a typewriter sit back to back

Experts eager to study ethics of artificial intelligence, journalism

July 7, 2023

How does artificial intelligence shape the news we see online? Researchers in the College of Media, Communication and Information are ready to examine the ethics and fairness of recommender systems in journalism, thanks to a $2 million grant from the National Science Foundation.

young string musicians arrive on the CU Boulder campus

CU Boulder hosts national music program to advance diversity in classical music

July 7, 2023

This summer, young string musicians from across the country came together at CU Boulder­’s College of Music­ to hone their craft and advance a culturally diverse future of music at the Sphinx Performance Academy summer camp.

Woman works at large piece of scientific equipment

Weeks later, potentially harmful chemicals lingered in homes affected by Marshall Fire

July 6, 2023

In the wake of the devastating Marshall Fire, a team of chemists and engineers from CU Boulder undertook a first-of-its-kind study to explore homes that survived the blaze. Their results reveal the potential health hazards that wildfires can leave behind in buildings.

Illustration of multiple molecules made up of two atoms represented by blue and red spheres

Why does matter exist? Roundness of electrons may hold clues

July 6, 2023

Physicists at CU Boulder and the National Institute of Standards and Technology (NIST) have made record-breaking measures of electrons, finding that these tiny particles may be more round- than egg-shaped. Their results could bring scientists closer to answering a profound mystery of existence.

Maciej Walczak and his lab group

Chemist to study molecular inner workings of Alzheimer’s disease

July 6, 2023

Maciej Walczak, CU Boulder associate professor of chemistry, won a $2 million NIH grant to investigate how certain sugars modify a brain protein associated with neurodegeneration.

Diners and servers in a restaurant.

Skipping the tip: Why some restaurants and businesses are nixing gratuities

July 6, 2023

babyÖ±²¥app’s iconic and newly reopened Casa Bonita restaurant is dumping tips. Will other businesses join in? CU Boulder babyÖ±²¥apps Professor Jeff Zax weighs in.

Plastic bottles and other trash on a beach

The future of recycling could one day mean dissolving plastic with electricity

July 5, 2023

Every year, consumers in the United States produce millions of tons of plastic waste, and most of it winds up in landfills. New research from chemists at CU Boulder takes a first step toward making all that trash vanish.

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