JPL scientists say high-altitude balloons can be used to study Venus – Pasadena Star News

PASADENA – Researchers from NASA’s Jet Propulsion Laboratory and the California Institute of Technology (Caltech) said today that they want to do more tests on the use of high-altitude balloons – like two balloons used in California after a series of earthquakes about two years ago – to determine if they could be used. to study earthquakes. Activity on Venus.

Instruments attached to one of the two “heliotrope” balloons detected a low-frequency acoustic vibration drifting above it as a result of a 4.2-magnitude aftershock in July 2019, with scientists later confirming they had detected a naturally occurring earthquake from a portable balloon. A tool for the first time, according to researchers.

The researchers deployed the balloons with the aim of testing the technology for further applications on Venus.

Acoustic coupling of atmospheric earthquakes is calculated to be 60 times more powerful on Venus than on Earth, which means it is easier to detect ‘earthquakes’ from cold layers of Venus’s atmosphere between 50 to 60 kilometers (about 31 to 37 kilometers) miles away. ) to rise,” said JPL technologist Siddharth Krishnamurthy, principal investigator for the analysis effort. “We should be able to detect earthquakes, volcanic processes, and outgassing events while determining activity levels.”

Researchers from NASA’s Jet Propulsion Laboratory and the California Institute of Technology (Caltech) said today they want to do more testing using high-altitude balloons – like two balloons used in California after a series of earthquakes about two years ago – to determine if they can be used to study seismic activity in Venus. Photo: JPL/NASA

Scientists can use blimps to drift over areas that look like they should be seismically active based on satellite observations and determine if they’re actually working by listening to “acoustic clues to see if it’s actually behaving like a land-based volcano,” according to Krishnamurthy.

Scientists have noted that Venus’ surface temperatures are hot enough to melt lead and atmospheric pressures high enough to crush a submarine, while balloons equipped with scientific instruments can float above the planet’s very rough surface without having to land on Venus.

The researchers said they will continue to fly the balloons over seismically active regions in hopes of determining where the earthquake occurred without needing confirmation from ground stations and exploring possibilities for balloons to fly over Venus, where two more NASA missions are scheduled to go between 2028 and 2030.

The results of the study were published this week in Geophysical Research Letters.

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