Robert M. Walker Obituary

Robert M. Walker, Ph.D., professor of physics in Arts & Sciences and faculty fellow for the McDonnell Center for Space Sciences, died Feb. 11 in Brussels, Belgium after an extended battle with stomach cancer. He was 74.

American Music of the 1980s

Photograph © Douglas M. Parker StudioJean-Michel Basquiat *Horn Players* 1983 Acrylic and oil paintstick on three canvas panels, 96 x 75Works by contemporary composers John Adams, Emma Diemer, William Bolcom and saxophonist Anders Lundegaard will highlight a concert of American Music of the 1980s at 7 p.m. Friday, Feb. 20, at the Washington University Gallery of Art.

‘Heavy metal’ snow on Venus is lead sulfide

David Kilper/WUSTL PhotoBruce Fegley, Jr. and Laura Schaefer, with a chunk of galena, or lead sulfide.Lead sulfide — also known by its mineral name, galena — is a naturally occurring mineral found in Missouri, other parts of the world, and now. . .other parts of the solar system. Because recent thermodynamic calculations by researchers at Washington University in St. Louis provide plausible evidence that “heavy metal snow,” which blankets the surface of upper altitude Venusian rocks, is composed of both lead and bismuth sulfides.
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