Faculty

Marcia Chatelain’s next book, coming out this fall, is a narrative history of the women who played roles in the 1963 March on Washington.

nocred

Why do modern humans carry small amounts of Neanderthal DNA almost everywhere in their genome except on the X chromosome? A new study by Alexander Platt and Daniel Harris in the lab of geneticist Sarah Tishkoff suggests the answer lies in ancient attraction. (Pictured) An illustration of a normal karyotype, the full complement of chromosomes arranged in homologous pairs.

(Image: MirageC via Getty Images)

Image: seb_ra via Getty Images

The researchers grew pancreatic tissue (above) so it incorporated a mesh-like electronic network (red). Cells within the tissue produce insulin (green), the blood-sugar-lowering hormone lost in type 1 diabetes.

(Image: Courtesy of Penn Medicine)

nocred

In 2024, members of the Social Action Lab toured rural areas in Appalachia to hear from nonprofit groups and others who help people with opioid use disorder move toward recovery.

(Image: Courtesy of the Social Action Lab)