For hundreds of nights during the next five years, the world’s most powerful digital camera will turn skyward, helping a team of physicists and astronomers from around the globe answer fundamental questions about our universe.
The human body has hundreds of different cell types, all with the same basic DNA, and all of which can ultimately be traced back to identical stem cells.
The last glacial maximum was a time when Earth’s far northern and far southern latitudes were largely covered in ice sheets and sea levels were low. Over much of the planet, glaciers were at their greatest extent roughly 20,000 years ago.
Peter Dodson of the School of Veterinary Medicine is quoted about studying species that were misclassified.
Daniel Janzen and Winnie Hallwachs of the School of Arts and Sciences are highlighted for their insect research and collecting in Costa Rica.
Both basic scientists and clinicians have an interest in how the cells of our body move. Cells must be mobile in order for organisms to grow, to heal, to transmit information internally, to mount immune responses and to conduct a host of other activities necessary for survival.
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 single species.
Arjun Yodh of the School of Arts and Sciences co-authors a blog post about studying stuttering.
When University of Pennsylvania nanoscientists created beautiful, tiled patterns with flat nanocrystals, they were left with a mystery: why did some sets of crystals arrange themselves in an alternating, herringbone style, even though it wasn’t the simplest pattern?