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NASA Hears “Birds Chirping” in Space

Satellites deployed by the U.S. National Aeronautics and Space Administration (NASA) have detected electromagnetic waves in space that sound eerily like the chirping of a flock of birds.

According to a recent paper posted to the website of Nature.com, a study conducted by NASA using its magnetospheric multiscale (MMS) satellites has detected rising-tone chorus waves about 1,000,000 km from Earth. Measurements by the MMS satellites identified discrete, rising-tone elements in the terrestrial neutral sheet, with frequencies frequently changing at a rate of about 100 Hz per second.

These wave-particle interactions and non-linear transfers within the chorus waves produce sounds surprisingly similar to the chirping noise made by birds during the early morning hours, NASA’s paper reports.

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This versatile field device generates signals that mimic various sensors to test and calibrate equipment. It helps technicians troubleshoot connections and verify system performance. Portable and battery-powered, it's designed for on-site diagnostic work in industrial environments.

The paper on NASA’s findings on chorus waves in space that sound like birds chirping is available at https://nature.com/articles/s41586-024-08402-z.

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