Douglas Jerolmack of the School of Arts & Sciences says, “Knowing whether pebbles in a river moved 1 kilometer or 100 kilometers [0.6 miles or 62 miles] could tell us how stable water was on the surface of ancient Mars.”
Mitchell Orenstein of the School of Arts & Sciences talks about why Russia intervened in the Syrian conflict and what that means for America and the region.
Mark Liberman from the Linguistic Data Consortium is quoted on the pitfalls of relying on technology when studying language.
Because plants cannot pick up and move, they have evolved a plethora of strategies to cope with environmental stresses, whether they bring a harsh spell of drought or a browsing deer.
While new evidence suggests that Mars may harbor a tiny amount of liquid water, it exists today as a largely cold and arid planet. Three billion years ago, however, the situation may have been much different.
Demographers Samuel Preston of the University of Pennsylvania and Andrew Stokes of Boston University set out to solve a puzzle: Why is it that study after study shows obese or overweight people with cardiovascular disease outliving their normal
Jonathan Baron of the School of Arts & Sciences and Uri Simonsohn of Arts & Sciences and the Wharton School are quoted.
When John Medaglia joined the University of Pennsylvania a year ago as a postdoctoral fellow, he didn’t yet have a precise path. Now it’s a little clearer, thanks to a prestigious honor given out to just 16 young scientists across the country.