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acoustics

Orange- and brown-spotted background with white S-shaped cloud in center left of image. Opposing black S shape crosses image horizontally.
Posted inNews

NASA’s Perseverance Rover Records the First Sounds of a Dust Devil on Mars

by Jon Kelvey 13 December 202227 January 2023

In a stroke of luck, the SuperCam microphone on Perseverance was turned on the moment a dust devil swept directly over the rover.

Photo of blue ice wall with pieces of ice falling into water in the foreground, causing the water to splash
Posted inNews

Underwater Sounds Help Reveal Extent of Glacial Calving

by Elise Overgaard 9 December 20229 December 2022

If a glacier calves into the Arctic Ocean, does it make a sound? Some scientists say yes and have devised a clever way to use those sounds to calculate the size of the fallen ice chunks.

Drone footage of a blue whale surfacing to breathe off the coast of California.
Posted inNews

Scientists Tune In to Blue Whale Feeding Rhythms

by Bill Morris 26 October 20226 December 2022

New acoustic sensing technology is allowing scientists to track blue whale movements in real time, a breakthrough that could help save whales’ lives.

Diagram showing the interior of the Sun
Posted inFeatures

Shake, Rattle, and Probe

by Damond Benningfield 25 August 202217 January 2023

Helioseismology allows scientists to study the interior of the Sun, solve some basic physics mysteries, and forecast space weather.

Aerial image of blue whale breathing at the water’s surface.
Posted inNews

Wiretapped Cables and the Songs of Whales

by Jenessa Duncombe 22 July 202217 February 2023

Researchers jerry-rigged fiber-optic cables in a fjord to eavesdrop on blue whales, with possible applications ranging from seafloor mapping to meteorology.

Lava in the Halemaʻumaʻu crater in the Kīlauea volcano.
Posted inNews

Volcanic Lava Lake Belts Out Its Secrets in Seismic “Songs”

by Andrew J. Wight 15 July 20229 March 2023

A cacophony of magma displacements and volcanic gases recorded underneath Kīlauea’s roiling lake of lava could one day provide information to help predict future eruptions.

A school of anchovies swims in shallow water in the Bahamas.
Posted inNews

Tiny Creatures May Play a Difficult-to-Detect Role in Ocean Mixing

by Carolyn Wilke 20 May 20222 June 2022

As an idea that began as a joke, critter-driven ocean mixing has long been controversial. Now scientists have caught spawning anchovies causing turbulence and stirring the sea.

The Secret Spire rock formation, or hoodoo, in Moab, Utah.
Posted inNews

Rock Music in Utah

by Robin Donovan 3 May 20223 May 2022

Three-dimensional models could help forecast rock tower frequencies—and seismic impacts—around the globe.

Left image shows the rocky coast of Kīlauea, and right image shows a punctured steel boat roof.
Posted inNews

Hundreds of Volcanic Explosions Detected Underwater at Kīlauea

by Jenessa Duncombe 14 December 202120 December 2021

Hundreds of volcanic explosions detected underwater at Kīlauea
The explosions, identified during the 2018 eruption phase, offer a clear acoustic signal that researchers could use to measure ocean properties.

Solar-powered hot air balloon
Posted inResearch Spotlights

Stratospheric Balloons Listen In on Ground Activity

by J. Lee 15 November 202115 November 2021

Solar-powered hot-air balloons, floating 2.5 times as high as Mount Everest, detected a buried explosion more clearly than ground-based sensors did.

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EDITORS' VOX
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