Science & Technology

‘Robotic blood’ powers and propels synthetic lionfish

Combining different functional components that are normally compartmentalized can lead to both powerful and lightweight future robots. A new paper by James Pikul highlights the success of a robotic lionfish that combines energy storage and movement through the use of a hydraulic liquid referred to as “robotic blood.”

Penn Today Staff

A two-minute totality, an opportunity of a lifetime

Graduate student David Sliski observed the July 2 eclipse at the Cerro Tololo Inter-American Observatory in Chile as a member of a scientific team tasked with imaging the sun’s corona.

Erica K. Brockmeier

Unraveling the brain’s reward circuits

Food, alcohol, and certain drugs all act to reduce the activity of hunger neurons and to release reward signals in the brain, but alcohol and drugs rely on a different pathway than does food.

Katherine Unger Baillie

Founded on an ecosystem of innovation

Penn was built on the concept of innovation. “If it’s new, novel and holds promise to change the world,” says President Amy Gutmann, “you’ll find it at Penn.”

Penn Today Staff , Amanda Mott

The chemistry behind fireworks

A Q&A with inorganic chemist Eric Schelter about the chemical reactions that create explosive displays and how different metals are used to create bright and brilliant colors.

Erica K. Brockmeier

Bipedal robot navigates the future

Thanks to Cassie, a cutting-edge two-legged robot, engineer Michael Posa has an ideal platform for tackling the challenges of locomotion.

Gwyneth K. Shaw

The science behind Spider-Man’s superpowers

A Q&A with biomaterials engineer Shu Yang about the real-life technologies and research that could allow people to climb up walls and synthesize their own superstrong spider silk.

Erica K. Brockmeier



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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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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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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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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