The influence of the ground beneath us on the air around us could be greater than scientists had previously thought, according to new research that links the long-ago proliferation of oxygen in Earth's atmosphere to a sudden change in the inner workings of our planet.

When Olga Troyanskaya's dog Jessy fell ill in early 2006, the vet had painful news.

  - For her senior thesis project, Princeton civil and environmental engineering major Ida Posner is developing a filter that could allow scientists to quickly measure water use by plants like this basil grown in the Princeton EcoHydrology Lab.

  - - Search committee for dean for research established - Princeton Provost Christopher Eisgruber has formed a committee to search for a successor to A.J. Stewart Smith as the University's dean for research.

Princeton University and the Max Planck Society of Germany have joined forces in a scientific collaboration that is designed to accelerate progress in cutting-edge research ranging from harnessing nuclear fusion to understanding solar storms. 

A major effort to study a mysterious substance that could enhance understanding of the cosmos and fusion energy has received a critical boost from the U.S. Department of Energy's Princeton Plasma Physics Laboratory (PPPL) .

  - Gerard Wysocki   - Photo by Frank Wojciechowski   - Daniel Sigman   - Photo courtesy of the John D. and Catherine T. MacArthur Foundation   - Andrew Houck   - Photo by Frank Wojciechowski   - Hakan Türe

A massive expansion of hydropower planned for the Mekong River Basin in Southeast Asia could have a catastrophic impact on the river's fishery and millions of people who depend on it, according to a new study by researchers including scientists from Princeton University.

  - Molecular biology major Kristan Scott focused his senior thesis on a mutant gene linked not only to colorectal cancer but also to the cancer’s ability to resist chemotherapy.

Differences in factors such as income, education and marital status could contribute overwhelmingly to the gap in life expectancy between blacks and whites in the United States, according to one of the first studies to put a number on how much of the divide can be attributed to disparities in socioeconomic characteristics.

  - Princeton Professor of Chemical and Biological Engineering Bruce Koel is working with scientists at the Princeton Plasma Physics Lab to apply the science of surface chemistry to solving one of the biggest obstacles facing fusion: how to keep the fusion reaction burning for long periods.

  - As chair of Princeton's Department of Mathematics, Sun-Yung Alice Chang, the Eugene Higgins Professor of Mathematics, is focused on expanding the department's research areas, building its popularity with students and fostering efforts to attract more women to a traditionally male-dominated field.