Science & Technology

Fish Skin Immune Responses Resemble That of the Gut, Penn Study Finds

Fish skin is unique in that it lacks keratin, the fibrous protein found in mammalian skin that provides a barrier against the environment. Instead, the epithelial cells of fish skin are in direct contact with the immediate environment: water.

Katherine Unger Baillie

Penn researchers determine three dinosaur species are actually one

Psittacosaurus (sih-TACK-oh-sore-us) is a genus of short, beak-faced dinosaurs that lived in Asia 120-125 million years ago, roaming China, Mongolia, Siberia, and possibly Thailand. The plant-eaters lived for about 10 million years in an era after Stegosaurus and before Tyrannosaurus rex, at a time when most dinosaurs were small.

Greg Johnson

Cultivating knowledge

[flickr]72157635183569499[/flickr] Photos by Scott Spitzer A stone’s throw from bustling 38th Street, just off Hamilton Walk, lies a carefully curated green oasis, and nearby, a soaring glass-walled structure where plants from the exotic to the mundane are cared for and studied.

Katherine Unger Baillie

Penn Scientists Demonstrate New Method for Harvesting Energy from Light

Researchers from the University of Pennsylvania have demonstrated a new mechanism for extracting energy from light, a finding that could improve technologies for generating electricity from solar energy and lead to more efficient optoelectronic devices used in communications.

Katherine Unger Baillie

Two Penn Students Awarded HHMI International Research Fellowships

Two doctoral students from the University of Pennsylvania, Nam Woo Cho of the Perelman School of Medicine and Maryam Yousefi of the School of Veterinary Medicine, have received International Student Research Fellowships from the Howar

Katherine Unger Baillie, Karen Kreeger

Penn Science Café: Studying Self-Control

Associate Professor of Psychology Robert Kurzban studies how the mind has adapted over time to the challenges of the social world, such as how to make decisions about cooperation, morality and punishment. Kurzban will talk about one trait we associate with these challenges: willpower.

Evan Lerner



In the News


Scientific American

Grumpy voters want better stories. Not statistics

In a Q&A, PIK Professor Duncan Watts says that U.S. voters ignored Democratic policy in favor of Republican storytelling.

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WHYY (Philadelphia)

Climate policy under a second Trump presidency

Michael Mann of the School of Arts & Sciences discusses how much a president can do or undo when it comes to environmental policy.

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Salon.com

Exxon CEO wants Trump to stay in Paris climate accord

Michael Mann of the School of Arts & Sciences voices his concern about the possibility that the U.S. could become a petrostate.

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Interesting Engineering

Superhuman vision lets robots see through walls, smoke with new LiDAR-like eyes

Mingmin Zhao of the School of Engineering and Applied Science and colleagues are using radio signals to allow robots to “see” beyond traditional sensor limits.

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Technical.ly Philly

A sneak peek inside Penn Engineering’s new $137.5M mass timber building

Amy Gutmann Hall aims to be Philadelphia’s next big hub for AI and innovation while setting a new standard for architectural sustainability.

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Associated Press

Amid Earth’s heat records, scientists report another bump upward in annual carbon emissions

Michael Mann of the School of Arts & Sciences says that total carbon emissions including fossil fuel pollution and land use changes such as deforestation are basically flat because land emissions are declining.

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The Wall Street Journal

How can we remove carbon from the air? Here are a few ideas

Jennifer Wilcox of the School of Engineering and Applied Science and Kleinman Center for Energy Policy at the Weitzman School of Design says that the carbon-removal potential of forestation can’t always be reliably measured in terms of how much removal and for how long.

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Associated Press

California air regulators approve changes to climate program that could raise gas prices

Danny Cullenward of the Kleinman Center for Energy Policy at the Weitzman School of Design says that many things being credited in California’s new climate program don’t help the climate.

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Times of India

Self shocks turn crystal to glass at ultralow power density: Study

A collaborative study by researchers from the School of Engineering and Applied Science has shed new light on amorphization, the transition from a crystalline to a glassy state at the nanoscale.

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The Independent

Climate scientists fear Trump will destroy progress in his second term – and the outcome could be ‘grim’

Michael Mann of the School of Arts & Sciences says that a second Trump term and the implementation of Project 2025 represents the end of climate action in this decade.

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