Fresh analysis of dinosaur skulls finds three species are one

A new analysis of dinosaur fossils by University of Pennsylvania researchers has revealed that a number of specimens of the genus Psittacosaurus—once believed to represent three different species—are all members of a ...

Can neutrinos help explain what's the matter with antimatter?

In physics, antimatter is simply the "opposite" of matter. Antimatter particles have the same mass as their counterparts but with other properties flipped; for example, protons in matter have a positive charge while antiprotons ...

Bioengineers on the brink of breaching blood-brain barrier

Imagine the brain as an air traffic control tower, overseeing the crucial and complex operations of the body's "airport." This tower, essential for coordinating the ceaseless flow of neurological signals, is guarded by a ...

A twist on atomic sheets to create new materials

The way light interacts with naturally occurring materials is well-understood in physics and materials science. But in recent decades, researchers have fabricated metamaterials that interact with light in new ways that go ...

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 ...

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