Photo 1 (IMAGE) University of Chicago Caption From left, Nobel Prize laureate Jack Szostak of the Chicago Center for the Origins of Life, UChicago Pritzker School of Molecular Engineering postdoctoral researcher Aman Agrawal and UChicago PME Dean Emeritus Matthew Tirrell are behind a new paper proposing that raindrops helped droplets of biological materials floating in the primordial soup form the first protocell walls. Credit UChicago Pritzker School of Molecular Engineering / John Zich Usage Restrictions N/A License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.