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Could exoplanets locked in eternal day and endless night support life?
Artist depiction of exoplanet LHS 3844 b.

Image: Courtesy of NASA

Could exoplanets locked in eternal day and endless night support life?

Ever so slightly bigger than Earth, the exoplanet LHS 3844b orbits its parent star, LHS 3884, a red dwarf 48.5 light-years away from our solar system, in such a way that the speed of its axial spin mirrors the speed of its orbit. The result? One side of LHS 3844b is perpetually bathed in scorching sunlight, locked into a never-ending, blistering hot day, while the other is forever shrouded in darkness so cold that particles are incapable of movement, a state known as absolute zero (zero Kelvin).

7 min. read

What ever-growing incisors can teach us about genetic disease
Microscopic view of a mouse incisor.

An image taken through scanning electron microscopy (SEM) shows a polished sagittal section through a mouse mandibular incisor, showing the different mineralized tissue layers.

(Image: Courtesy of Penn Engineering Today)

What ever-growing incisors can teach us about genetic disease

An interdisciplinary team of researchers approaches the question ‘How do teeth mineralize?’ by analyzing the physical, biological, and genetic properties of teeth for real-world clinical applications in the future.

Melissa Pappas

2 min. read

The global threat of salt contamination to water supplies
Green, diatom and blue-green algae in the blooming water of a coastal salt puddle on the shore

Image: Oleg Kovtun via Getty Images

The global threat of salt contamination to water supplies

Research from Weitzman’s Allison Lassiter and an international team of researchers highlights how a combination of climate change impacts and localized human activities are intensifying the increase in salt in vital freshwater sources.

From the Weitzman School of Design

2 min. read

Beneath the surface: Diving into water’s hidden carbon-cleaning capabilities
3D rendering of water molecules on a copper surface.

Water molecules become increasingly disordered at the surface of a catalyst. Researchers found that this disordered interfacial water, shown transitioning from structured (left) to disorganized (right), plays a key role in speeding up the conversion of carbon monoxide into ethylene, a valuable fuel and chemical building block.

(Image: Courtesy of Shoji Hall)

Beneath the surface: Diving into water’s hidden carbon-cleaning capabilities

Penn materials scientist Shoji Hall and colleagues have found that manipulating the surface of water can allow scientists to sustainably convert greenhouse gases like carbon dioxide and carbon monoxide to higher energy fuel sources like ethylene.

5 min. read

A new recipe for safer, stronger mRNA vaccines
Emily Han and Dongyoon Kim in the research lab filled with bottles and other lab equipment..

Bioengineering researchers Emily Han (left) and Dongyoon Kim.

(Image: Bella Ciervo)

A new recipe for safer, stronger mRNA vaccines

Penn engineers have found a way to redesign mRNA vaccines that sidestep the the most common side effects.

Ian Scheffler

2 min. read

Staff Q&A with Peter Fixler
Peter Fixler stands among the trees and greens at the Morris Arboretu.

Image: Eric Sucar

  • Q&A

    • Staff Q&A with Peter Fixler

    The lead arborist at the Morris Arboretum & Gardens discusses his interest in tree work, how trees benefit the planet, the tallest tree he has climbed, current research at the Morris, and its impact in America and beyond.

    6 min. read

    Lynn Meskell elected Fellow to the British Academy
    Lynn Meskell

    Meskell is the Richard D. Green Penn Integrates Knowledge University Professor with joint appointments in the School of Arts & Sciences, the Weitzman School of Design, and the Penn Museum.

    nocred

    Lynn Meskell elected Fellow to the British Academy

    The honor recognizes individuals who have demonstrated outstanding contributions to the humanities and social sciences.

    3 min. read

    Cracking the code of force-driven chemistry

    Cracking the code of force-driven chemistry

    Penn Engineering’s Robert Carpick, Cangyu Qu, and Lu Fang have developed a theoretical model that overcomes previous challenges in accurately describing the relationship between mechanical stress and chemical reactions. Their new study fills in the gap for describing the forces that occur when molecules are squeezed between two surfaces. This result helps make it easier to predict mechanochemical reactions, which are promising for the green manufacturing of plastics, metallic compounds, lubricants and more.

    A hands-on education of Pennsylvania and New Jersey ecology
    Three people walking through a field.

    One of six field trips in Sally Willig’s Regional Field Ecology class took students to Natural Lands’ Mariton Wildlife Sanctuary.

    (Image: Chi-Hyun Kim)

    A hands-on education of Pennsylvania and New Jersey ecology

    Sally Willig has been teaching Regional Field Ecology at Penn since 1999, educating students about plants, soils, and more at sites such as Ringing Rocks County Park and the Pine Barrens.

    4 min. read

    Strongest nor’easters getting stronger
    A map showing increase in nor’easters.

    Image: Courtesy of Michael Mann

    Strongest nor’easters getting stronger

    Research from Professor Michael Mann and Ph.D. students Annabelle Horton and Mackenzie Weaver shows that as the worst of these East Coast winter storms intensify, so does their destructive potential—a facet that current coastal risk assessments often ignore.

    Michele W. Berger

    2 min. read