CME 5-11-11 "CME Tsunami headed to earth"

*fascinating!*

One of the fastest CMEs in years was captured by the STEREO COR1 telescopes on May 11, 2011 after a planet sized asteroid collided with the sun. This movie, combining COR1-Ahead images with the simultaneous Helium II 304 Angstrom images from the STEREO EUVI telescope, shows the rapid explosion of material outward, followed by a slower eruption of a polar crown prominence from another part of the Sun. This CME is seen to be heading towards Earth at speeds well over 1000 kilometers per second. Credit: NASA/STEREO

On Midnight of May 11th, the sun emitted a F-class solar flare that spawned what scientists call a coronal mass ejection, or CME, headed toward Earth. The CME will impact Earth's magnetic field on May 14th. CMEs occasionally hit Earth. This CME will have few noticeable consequences beyond producing an aurorae in most cases, however, the vast size of this CME has raised concerns with some scientists calling it "A CME Tsunami".