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South American fossil tomatillos show nightshades evolved earlier than thought


 Delicate fossil remains of tomatillos found in Patagonia, Argentina, show that this branch of the economically important family that also includes potatoes, peppers, tobacco, petunias and tomatoes... read more

Right after an asteroid killed the dinosaurs, life returned to the scene of the crime


 Some 66 million years ago, a giant space rock smashed into the Gulf of Mexico and brought the age of the dinosaurs — along with 75 percent of all organisms on Earth — to an abrupt and fiery end.... read more

Big data approach to water quality applied at shale drilling sites


 A computer program is diving deep into water quality data from Pennsylvania, helping scientists detect potential environmental impacts of Marcellus Shale gas drilling. The work, supported by a new $... read more

Alumnus’ intensity, creativity and drive led to great accomplishments, impact


Intense drive, creativity and a commitment to doing what’s right: Those are a few characteristics two Penn State professors use to describe Mark Pagani, a Penn State geosciences alumnus who died on... read more

Climate cycles may explain how running water carved Mars' surface features


 UNIVERSITY PARK, Pa. — Dramatic climate cycles on early Mars, triggered by buildup of greenhouse gases, may be the key to understanding how liquid water left its mark on the planet's surface,... read more