Sons do universo

segunda-feira, outubro 05, 2009

Sounds of Enceladus

The NASA/ESA/ASI Cassini-Huygens spacecraft detected an atmosphere on Saturn's icy moon Enceladus.

Cassini's MAG magnetometer instrument observed 'ion cyclotron' waves in the vicinity of the moon. These waves are organised fluctuations in the magnetic field that provide information on what electrically charged molecules (ions) are present. This audio file shows the power of these waves near Enceladus.

Listen/Ouça.

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Song of the Sun

Low-frequency vibrations from the Sun recorded by the ESA/NASA SOHO spacecraft.

This video shows how the atmospheric circulation inside the Sun causes very low frequency 'sound' to be produced.

Listen/Ouça.

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Cassini-Huygens passing through Saturn's rings

NASA/ESA/ASI Cassini-Huygens spacecraft is hit by millions of dust particles as it goes through a gap in Saturn's icy rings.

Although the ring gaps appear empty, they are not. The spacecraft ploughed through these dust particles at a speed of about 70 000 kilometres per hour! These impacts, converted into audible sounds, resemble hail hitting a tin roof.

Listen/Ouça.