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The sun is not still – hear their song in new observatory data



The sun is not still; in fact, it has a surprisingly soothing sound.

Did you ever listen to the sun? Thanks to data from the European Space Agency (ESA) and NASA's Sun and Heliospheric Observatory (SOHO), you can do that now. With 20 years of data on the dynamic movement of the Sun's atmosphere, researchers have allowed us to listen to the eruptions, loops, waves, and other activities of the Sun.

It turns out that the sun produces a low, pulsating "heartbeat". But these sounds are more than just the hottest tracks from NASA scientists. Listening to the sun gives scientists another opportunity to observe and study not just the Sun of Earth but also other stars in the universe, such a statement. [Anatomy of Sun Storms & Solar Flares (Infographic)]

"Waves travel and bounce in the sun, and if your eyes are sensitive enough, they might actually see it," Alex Young, associate director of science in the Heliophysics Science Division at NASA's Goddard Space Flight Center (1

9659002) The use of a solar observatory to measure the vibrations of the sun – which can be translated into sound – reveals what's going on inside and can help scientists study everything from solar flares to coronal mass ejections in the sun.

"We have no easy ways to look into the sun, we do not have a microscope to zoom in, so we can look in with a star or the vibrations of the sun," continued Young.

The Stanford Experimental Physics Lab turned data from SOHO into a "song". They worked with the natural vibrations of the sun, which make up the hum and "heartbeat" that you can hear in the recording.

To create the audio clip above, Stanford University researcher Alexander Kosovichev has processed 40 days of data from SOHO's Michelson Doppler Imager (MDI). When processing the vibrations, he removed effects from the spacecraft's motion, selected clean sound waves that would be heard more clearly, and accelerated the data by a factor of 42,000 to make them audible to humans.

With this strange, soothing, stellar sound, scientists can see "huge streams of solar material flowing through us, we finally begin to understand the layers of the Sun and the complexity." This simple sound gives us a probe in a I think that is a pretty cool thing, "Young said in the statement.

E-Mail: Chelsea Gohd to cgohd@space.com or follow her @chelsea_gohd . Follow us @SpaceTotcom Facebook and Google+. Original article on Space.com.


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