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Evolved enzymes build tuberculosis antibiotic ingredient in the desired form, potentially reducing waste
Science News

Evolved enzymes build tuberculosis antibiotic ingredient in the desired form, potentially reducing waste

Tuberculosis, or TB, is a contagious bacterial infection that primarily affects the lungs. While curative treatments exist, more than 80% of cases occur in low- and middle-income nations, where drug-resistant strains are on the rise and the cost of medications is a burden. A new class of antibiotics has shown promise against multidrug- and extensively drug-resistant TB, but its manufacturing cost is a barrier to access in poorer countries that need the treatments most.

📅 2026-09-23 21:00:05    •    Phys.org
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‘Lately, my algorithm is trash’
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‘Lately, my algorithm is trash’

Illustration by Andy Huang/Ikon Images Science & Tech ‘Lately, my algorithm is trash’ Are we shaping our feeds or are they shaping us? Liz Mineo Harvard Staff Writer September 23, 2026 long read Recommendation algorithms promise social media users a personalized experience, but some experts worry they promote doomscrolling, brain rot, and myriad mental health problems. Australia recently proposed legislation to allow users to opt out of algorithms with the goal of protecting children online and giving people more control over what they see on their feeds. We asked faculty members from different fields of study to share their views and concerns about recommendation algorithms. Their responses...

📅 2026-09-23 20:55:44    •    Harvard Gazette
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New AI methodology powers the latest million dollar list
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New AI methodology powers the latest million dollar list

New research from Indiana University Lilly Family School of Philanthropy examines charitable gifts of $1 million or more from 2021 to 2023. The Million-Dollar-Plus Giving in the United States, 2021–2023 report offers insights into how these donors responded to a rapidly changing environment.

📅 2026-09-23 20:40:05    •    Phys.org
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Curios and curiouser
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Curios and curiouser

Science & Tech Curios and curiouser Polar bear from 1878. Stephanie Mitchell/Harvard Staff Photographer Anna Lamb Harvard Staff Writer September 23, 2026 5 min read With exhibits including a dodo, fish mummified in pearl, and a ‘King Kong’-connected Komodo, ‘discovering the stories is one of the best jobs’ You’ve probably already marveled at the astonishingly realistic glass flowers on display at the Harvard Museum of Natural History as well as the whale skeletons suspended from the rafters in its Great Mammal Hall. But have you seen its dodo bird specimen or the Komodo dragon skull? Both are showcased in the new exhibit “Collecting Wonders: Tomorrow’s Discoveries,” which has unearthed some ...

📅 2026-09-23 19:23:00    •    Harvard Gazette
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How did Hurricane Polo get so powerful?
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How did Hurricane Polo get so powerful?

A Pacific cyclone dubbed Polo exploded from a tropical storm into a powerful Category 5 hurricane in less than 24 hours on Tuesday (Sept. 22), with winds reaching speeds of 180 mph (290 km/h). Now drifting off the southwest coast of Mexico, Polo has been downgraded to a Category 4 storm but remains "a very powerful major hurricane," the National Hurricane Center (NHC) said in an update Wednesday (Sept. 23).As Polo moves northwest, it is expected to drive torrential rainfall on parts of Mexico's southwest coast. Although the storm is not predicted to make direct landfall, the NHC has warned that heavy rain may produce life-threatening flooding and mudslides, as well as extremely hazardous oce...

📅 2026-09-23 18:46:21    •    Live Science
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The healing power of gene therapy
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The healing power of gene therapy

Health ‘Harvard Thinking’: The healing power of gene therapy Illustrations by Liz Zonarich/Harvard Staff Samantha Laine Perfas Harvard Staff Writer September 23, 2026 long read How researchers are seeing their work changing lives — from restoring children’s hearing to saving a baby born with a fatal disease Baby KJ made national headlines last year when at 6 months old he became the first person to receive a personalized CRISPR gene-editing treatment for his previously incurable genetic disorder. David Liu, the Thomas Dudley Cabot Professor of the Natural Sciences, says that the case — spearheaded by doctors at the University of Pennsylvania and at the Children’s Hospital of Philadelphia — h...

📅 2026-09-23 17:51:53    •    Harvard Gazette
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This week’s new questions
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This week’s new questions

Is it faster to jog up stairs or take them two at a time? If the world we observe is just our brain’s interpretation of the electro-chemical signals it receives from our eyes, what is the world actually like?

📅 2026-09-23 17:00:00    •    New Scientist
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Researcher finds that cats lie around for a ridiculous amount of time
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Researcher finds that cats lie around for a ridiculous amount of time

Josie Ford Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more A little catty Feedback’s felines are often nowhere to be seen. For hours at a time – in the case of the more free-range cat, sometimes several days – they vanish from sight. What might they be doing? Torturing the local small-animal population perhaps, or chasing fallen leaves around the yard, or visiting the local school to cause as much disruption to learning as possible, or perhaps just lazing in a warm spot to sleep. But who knows? One person who does know is Michelle Smit at Massey University in New Zealand, because she and her colleagues put collar-mounted accel...

📅 2026-09-23 17:00:00    •    New Scientist
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Earth's first bats didn't come from where we thought, landmark genetic study reveals
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Earth's first bats didn't come from where we thought, landmark genetic study reveals

Scientists may have settled a decades-long debate about bat evolution, including controversial questions about when bats began to communicate and fly, a landmark study shows.The new research, published Wednesday (Sept. 23) in the journal Nature, is the biggest bat DNA and fossil study ever conducted. Researchers created new, top-quality genome assemblies for 41 bat species, which they analyzed together with 62 existing sequences, providing a record dataset of 103 bat genomes and 44 bat fossils."It is extraordinary," study co-author Emma Teeling, a professor of molecular evolution and mammalian phylogenetics at University College Dublin, told Live Science in an email; "after decades of resear...

📅 2026-09-23 16:05:28    •    Live Science
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Missing Celtic fort annihilated by Julius Caesar finally found under Paris hospital
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Missing Celtic fort annihilated by Julius Caesar finally found under Paris hospital

Archaeologists excavating a Paris hospital's courtyard, a stone's throw from Notre-Dame, have discovered the first evidence of a Celtic fort that Julius Caesar tried to conquer in 52 B.C. The ancient walls show evidence of a violent fire, seemingly confirming the claim that the Celtic group who lived there, known as the Gauls, burned down their own town so that it wouldn't fall into Caesar's hands."The wall's architecture, with its large blocks and interlocking beam system, immediately led us to believe it was a wall of Gallic tradition," Dorothée Chaoui-Derieux, chief curator of heritage at the Île-de-France Regional Archaeology Service, said in a translated statement. Traces of fire and fi...

📅 2026-09-23 16:03:51    •    Live Science
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Astronomers detected radio signals coming from an exoplanet for the first time. Spoiler alert: It's not aliens.
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Astronomers detected radio signals coming from an exoplanet for the first time. Spoiler alert: It's not aliens.

For the first time, astronomers have detected radio signals coming directly from a planet outside our solar system, according to a new preprint study. Spoiler alert: It's not aliens. But astrophysicists are still very excited about this discovery. "Astronomers have been looking for radio signals from exoplanets for some time," Suzanne Aigrain, a professor of astrophysics at the University of Oxford who was not involved in the study, told Live Science in an email. "There have been tentative, indirect detections before, but this is the first truly convincing direct detection, and it hopefully paves the way for many more."Artificial radio signals are a key focus in the search for extraterrestri...

📅 2026-09-23 15:45:19    •    Live Science
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MIT welcomes David Siegel SM ’86, PhD ’91 as its next Innovation Fellow
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MIT welcomes David Siegel SM ’86, PhD ’91 as its next Innovation Fellow

David Siegel SM ’86, PhD ’91, a computer scientist, entrepreneur, and philanthropist, will serve as the next MIT Innovation Fellow during the 2026-27 academic year. Working with the MIT Schwarzman College of Computing, Siegel will explore how artificial intelligence can accelerate scientific discovery at the Institute and beyond.“From the MIT Schwarzman College of Computing to the MIT Siegel Family Quest for Intelligence, David has been a superb thought partner for me and other Institute leaders on a range of very significant initiatives, so we're delighted to have him join us now as an MIT Innovation Fellow,” says MIT President Sally Kornbluth. “Our community has long benefited from David's...

📅 2026-09-23 15:30:00    •    MIT News
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