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Solar and Heliospheric Observatory Captures the Sounds of the Sun

28 July 2018

Alex Young, associate director for science in the Heliophysics Science Division at NASA's Goddard Space Flight Center in Greenbelt, Maryland said, "Waves are traveling and bouncing around inside the Sun, and if your eyes were sensitive enough they could actually see this".

USA space agency NASA is preparing to launch a probe in August to study the Sun closer than any human-made object ever has, revealing multiple mysteries behind the star.

The sounds of the Sun posted on the NASA website in a short clip for listening. It is available to everyone. The vibrations they hear are the result of the complex motions that generate magnetic fields inside the sun which drift to the surface and cause the sun spots that set off the solar flares and coronal mass ejections that are behind space weather.

These are solar sounds generated from 40 days of the Solar and Heliospheric Observatory's (SOHO) Michelson Doppler Imager (MDI) data and processed by A. Kosovichev.

The Stanford Experimental Physics Lab turned data from SOHO into a "song". This was then scaled to bring it to the audible human-hearing range. Using 20 years of data on the dynamic movement of the sun's atmosphere, researchers have made it possible for us to listen to the sun's eruptions, loops, waves and other activity. The recordings reveal the sun contains "huge rivers of solar material flowing around". The operation will observe the vehicle sized spacecraft probe the Corona, the exterior most layer of the Sun's atmosphere situated seven million miles from the surface of the star. We don't have a microscope to zoom inside the Sun.

"Parker Solar Probe will fly closer to the Sun than the distance at which even close-in exoplanets orbit their own Suns, giving us unprecedented information on the kinds of environments these planets experience". "I think that's a pretty cool thing".

Solar and Heliospheric Observatory Captures the Sounds of the Sun