About The Source

The Source is a place for information, inspiration and for sharing stories about exciting discoveries and accomplishments at Washington University. Here, you’ll experience the research, scholarship and creativity that drive us every day. You’ll also get a glimpse of campus life and meet the people who inspire us: scientists, leaders, entrepreneurs, innovators, artists and authors. If you’re looking to explore a remarkable place where people matter and serious work is done, this is The Source.

Water world

Three Washington University in St. Louis scientists studied the great granddaddy of all photosynthetic organisms — a strain of cyanobacteria — to develop the first experimental map of that organism’s water world.

Oxygen levels link to ancient explosion of life

A team of researchers, including a faculty member and postdoctoral fellow from Washington University, found that oxygen levels appear to increase at about the same time as a three-fold increase in biodiversity during the Ordovician Period, between 445 and 485 million years ago, according to a study published Nov. 20 in Nature Geoscience.