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.