Author: Talia Ogliore

Chemists in Arts & Sciences have re-engineered one of nature’s solar cells to drive electrons down an alternate path. This work advances the understanding of the earliest light-driven events of photosynthesis and is published in the Proceedings of the National Academy of Sciences.

New Arts & Sciences research finds that chimpanzees that use a multi-step process and complex tools to gather termites are more likely to share tools with novices. The study helps illuminate chimpanzees’ capacity for prosocial — or helping — behavior, a quality that has been recognized for its potential role in the evolution of human cultural abilities.

For thousands of years, goosefoot and knotweed were grown as crops, possibly feeding as many indigenous people of North America as corn. But the domesticated forms of these lost crops became lost over the years, and now a Washington University in St. Louis archaeologist is trying to figure out why — and recreate them.

Researchers from Washington University in St. Louis and the Chinese Academy of Agricultural Sciences discovered that rice domestication relied on selection for traits determined by a poorly understood portion of the rice genome.

New research from Washington University in St. Louis provides insight into how proteins called phytochromes sense light and contribute to how plants grow. Biologists used sophisticated techniques to structurally define the sequence of events that support the transition between light- and dark-adapted states.

A team of Washington University in St. Louis scientists at McMurdo Station, Antarctica, successfully launched its SuperTIGER (Super Trans-Iron Galactic Element Recorder) instrument, which is used to study the origin of cosmic rays. 

Jhan Salazar, a graduate student in biology in Arts & Sciences, was recognized by the Colombian organization Color de Colombia as the “Afro-Colombian of the Year” in the youth category in a nationally televised ceremony in Colombia on Dec. 2.

Researchers from Washington University in St. Louis will develop and deploy a new telescope designed to measure the linear polarization of X-rays arriving from distant neutron stars, black holes and other exotic celestial objects. The instrument will be flown on a minimum of two scientific balloon launches as early as summer 2021. The NASA-funded effort builds on promising results from a previous balloon-borne mission known as X-Calibur and is dubbed XL-Calibur.

In a Dec. 10 briefing on Capitol Hill, chemist Sophia Hayes of Washington University in St. Louis and an expert on helium testified that steep price increases and “supply shocks” threaten basic research in academic settings. Shortages will also lead to broader health and industry applications, she said.

RIP Mars rovers Spirit and Opportunity. But the geosciences data they collected will live on at Washington University, under the care of a team of archivists in Arts & Sciences. The data includes details about both rovers’ every move as well as many images that helped this space mission capture the public’s imagination.