Tag Archives: sun

The Music of the Sun

I’m always searching for new sources of sound, but astronomers at the University of Sheffield have come up with a great one. They’ve managed to make an audio recording of the magnetic fields present in the atmosphere of the sun.

Coronal loops are huge magnetic loops that can be over 60,000 miles long, coil themselves in the sun’s atmosphere, and vibrate in a way very similar to how sound waves travel in a stringed instrument.

These coronal loops vibrate back and forth, just as if they were plucked by a giant hand. These loops are thought to be involved with solar flares, and create what scientists call “space weather”… no, I’m not making this up.

Coronal_loop_sound

Space Storms can sometimes go a bit crazy, and can cause all sorts of havoc on earth, like destroying electronics, killing power grids and wrecking satellites. NASA claims that we should experience such a storm sometime around 2013.

The scientists translated measurements the vibrations into sound (as the sound itself cannot travel through the near-vacuum of space), and sped up the resulting waveforms to put them into the range of human hearing. Other than just producing some pretty amazing sounds, “sun music” has other uses as well. Professor Robertus von Fáy-Siebenbürgen, head of the solar physics research group at Sheffield University, said:

Studying the “music of the sun” would provide new ways of understanding and predicting solar flares before they happen.

Here’s a sample of what the SunSynth sounds like: VIDEO

 

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New Eye on the Sun Delivers Stunning First Images

This compilation of video shows some of the first imagery and data sent back from NASA’s Solar Dynamics Observatory (SDO). Most of the imagery comes from SDO’s AIA instrument, and different colors are used to represent different temperatures, a common technique for observing solar features. SDO sees the entire disk of the Sun in extremely high spacial and temporal resolution and this allows scientists to zoom in on notable events like flares, waves, and sunspots.

http://www.youtube.com/user/NASAexplorer

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