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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).
Penn Libraries’ collection conservation director
Sarah Reidell in the Libraries Conservation Lab.

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Penn Libraries’ collection conservation director

Sarah Reidell is now in her 10th year as head of the Steven Miller Conservation Laboratory at the Penn Libraries, leading a team of five technicians in caring for the millions of physical objects in the collection

Louisa Shepard

How Henry Daniell weds dental research with global health and sustainability
Researcher in lab coat standing in lab.

Henry Daniell, faculty fellow of Penn’s Environmental Innovations Initiative and the W.D. Miller Professor and vice chair in the Department of Basic & Translational Services at Penn’s School of Dental Medicine.

(Image: Kevin Monko)

How Henry Daniell weds dental research with global health and sustainability

Daniell, a faculty fellow of the Environmental Innovations Initiativ and the W.D. Miller Professor and vice chair in the Department of Basic & Translational Sciences at Penn’s School of Dental Medicine, explains his research and its connections to sustainability and the environment.

From the Environmental Innovations Initiative

2 min. read

Understanding how young children recognize emotions in music
Young child with headphones on.

Image: Uma Shankar sharma via Getty Images

Understanding how young children recognize emotions in music

Research from psychologists in the School of Arts & Sciences shows that children ages 3 to 5 can identify emotions in music, but that kids who show fewer signs of empathy or guilt demonstrate poorer emotion recognition. “We’re excited to continue to use music as a paradigm both to understand underlying mechanisms and as a treatment target,” Rebecca Waller says.

2 min. read

Penn powers up AI learning for faculty and staff
Campus overhead view featuring foliage and various campus buildings

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Penn powers up AI learning for faculty and staff

AI Principles & Practices, a series of interactive sessions supported by a Draw Down the Lightning Grant, aims to enhance faculty and staff skills by introducing platforms and technologies supported at Penn.

2 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

What words in online reviews tell us about hospital visits

What words in online reviews tell us about hospital visits

Online reviews can provide insight into what influences whether patients have a “good” or “bad” health care experience, a Penn Medicine analysis shows.

Frank Otto

2 min. read

Paideia Fellows build dialogue in Athens
Penn students in Athens, Greece.

SNF Paideia Fellows visit Athens, Greece, in 2025.

(Image: Photo by Annalise Howard, courtesy of the SNF Paideia Program)

Paideia Fellows build dialogue in Athens

Penn’s SNF Paideia class of 2025 fellows capped off a three-year experience on a trip to Greece, where they met with local residents, toured historic sites, and discussed local issues with global impact.

3 min. read