Wednesday, April 2, 2008

'tsunami' on Sun

Scientists have observed 'tsunami' on Sun.

Astronomers have captured the "first" movie of a solar “tsunami” in the Sun’s atmosphere .

It was glimpsed by Nasa’s STEREO spacecraft . STEREO mission consist of two spacecrafts revolving around the Sun to reveal it's 3D image.

Tsunami on the Sun is a wave of pressure that sweeps across the Sun. It is induced by a huge explosion near or on the surface of the Sun, such as a coronal mass ejection or flare, which causes a pressure to propagate outwards in a circular pattern.

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This picture is From the picture of the day: 2006 December 13

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