Weekend Edition Saturday Hear the Weekend Edition Saturday program for February 16, 2019

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A white-tailed deer keeps its ears open while grazing in South Hero, Vt. Rob Swanson/AP hide caption

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Rob Swanson/AP

Animals

Hungry Deer May Be Changing How Things Sound In The Forest

Sound travels differently through open fields than the woods. When deer eat up bushes, small trees and other forest plants, it affects the transmission of bird calls and other natural sounds.

An artist's concept shows a NASA Mars exploration rover on the surface of Mars. The twin rovers Spirit and Opportunity were launched in 2003 and arrived at sites on Mars in January 2004. NASA/JPL-Caltech hide caption

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NASA/JPL-Caltech

Opinion: Good Night Oppy, A Farewell To NASA's Mars Rover

Audio will be available later today.

Thanks in part to his original songwriting, singing and guitar-playing, Physics doctoral student Pramodh Senarath Yapa beat out the remaining entrants to win this year's "Dance Your Ph.D." contest. Courtesy of Matthias Le Dall hide caption

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Courtesy of Matthias Le Dall

Ph.D. Student Breaks Down Electron Physics Into A Swinging Musical

Audio will be available later today.

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