The sounds of a Martian sunrise inspire short musical composition

Enlarge / The sonification process involved assigning specific pitches and melodies to such characteristics in the data as brightness, color, and the elevation of the terrain. (credit: YouTube/NASA)
NASA's Mars rover Opportunity fell silent earlier this year, but even if it never regains full function, it had one last gift to give. Scientists have transformed Opportunity's image of its 5,000th sunrise on Mars into music using a process called data sonification.
“Image sonification is a really flexible technique to explore science, and it can be used in several domains, from studying certain characteristics of planet surfaces and atmospheres, to analyzing weather changes or detecting volcanic eruptions,' says Domenico Vicinanza, director of the Sound and Game Engineering research group at Anglia Ruskin University. “In health science, it can provide scientists with new methods to analyze the occurrence of certain shapes and colors, which is particularly useful in image diagnostics.”
He and his co-creator, the University of Exeter's Genevieve Williams, will debut their two-minute composition ('Mars Soundscapes') at NASA's booth at the Supercomputing SC18 conference this week in Dallas, Texas.
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