NASA'S STEREO spacecraft reveals anatomy of a solar storm in 3-D.

Observations in 3-D from NASA's twin Solar Terrestrial Relations Observatory (STEREO) spacecraft have allowed scientists, for the first time, to reveal the true size and shape of solar explosions known as coronal mass ejections, or CMEs. CMEs-giant clouds of plasma ejected into space by the sun-can cause magnetic storms affecting communication systems, power grids, and astronauts in space.

For more information, go to:
http://www.nasa.gov/home/hqnews/2009/apr/HQ_09-083_STEREO.html

	Dr. Michael Kaiser, STEREO project scientist, commenting on April 14, 2009 on the 3D modeling of coronal mass ejection by the STEREO mission. (Credit: NASA/Paul Alers)
	Dr. Angelo Vourlidas, project scientist, Sun Earth Connection Coronal and Heliospheric Investigation, commenting on April 14, 2009 on the 3D modeling of coronal mass ejection by the STEREO mission. (Credit: NASA/Paul Alers)

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Movies

	3D_CME.mov: Animation demonstrating how a three-dimensional model of a coronal mass ejection is constructed using data from the two NASA STEREO spacecraft. 3D_CME.mov    3D_CME_4.mov    3D_CME.mpg
	COR2A_2B_sidebyside.mov: Image sequence from telescopes onboard STEREO spacecraft showing a coronal mass ejection event on December 12-13, 2008. Data from both spacecraft are shown simultaneously. COR2A_2B_sidebyside.mov    COR2A_2B_sidebyside_4.mov    COR2A_2B_sidebyside.mpg
	3D_CME_shot_01_nolabels.mov: Animation depicting STEREO-A viewing a coronal mass ejection leaving the sun between December 12-13, 2008. 3D_CME_shot_01_nolabels.mov    3D_CME_shot_01_nolabels_cut.mov    3D_CME_shot_01_nolabels_cut.mpg
	3D_CME_shot_02_nolabels.mov: Animation depicting STEREO-B viewing a coronal mass ejection leaving the sun between December 12-13, 2008. 3D_CME_shot_02_nolabels.mov    3D_CME_shot_02_nolabels_4.mov    3D_CME_shot_02_nolabels.mpg
	3D_CME_shot_03_nolabels.mov: Animation showing how the two views of the coronal mass ejection are used to create a 3-D model of its shape. 3D_CME_shot_03_nolabels.mov    3D_CME_shot_03_nolabels_4.mov    3D_CME_shot_03_nolabels.mpg
	3D_CME_timelapse.mov: Animation depicting the shape of the December 12-13, 2008 coronal mass ejection at three points in its propagation. 3D_CME_timelapse.mov    3D_CME_timelapse_4.mov    3D_CME_timelapse.mpg
	STEREO_beauty_pass.mov: Animation depicting the STEREO spacecraft observing an active sun. stereo_640x480.mpg    stereo_320x240.mpg
	CME_overview.mov: Animation depicting a coronal mass ejection (CME) leaving the sun and causing magnetic storms on Earth. CMEs—giant clouds of plasma ejected into space by the sun—can cause magnetic storms affecting communication systems, power grids, and astronauts in space. CMErecon_4sm.mov
	EUVI_wavelengths.mov: NASA spacecraft captured these images of the sun March 17-27, 2007. STEREO can see the sun in several different wavelengths. Each wavelength allows scientists to see different features on the sun. EUVI_wavelengths.mov    EUVI_wavelengths_4.mov    EUVI_wavelengths.mpg
	3D_CME_web_short.mov: Dr. Angelos Vourlidas, the Project Scientist for STEREO's Sun Earth Connection Coronal and Heliospheric Investivation (SECCHI) instrument, explains how the STEREO satellites have been able to observe the true size, shape, and three-dimensional structure of a coronal mass ejection for the first time. 3D_CME_web_short.mov    3D_CME_web_short_4.mov    3D_CME_web_short.mpg

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Print Resolution Images

3D_CME.tif: Print-resolution image from a three-dimensional model of a coronal mass ejection is constructed using data from the two NASA STEREO spacecraft.

cor2a_b_new.tif: Print-resolution image from telescopes onboard STEREO spacecraft showing a coronal mass ejection event on December 12-13, 2008. Data from both spacecraft are shown simultaneously.

stereo_a_print.tif: Print-resolution image depicting STEREO-A viewing a coronal mass ejection leaving the sun between December 12-13, 2008.

stereo_ws_print.tif: Print-resolution image showing how STEREO's two views of the coronal mass ejection are used to create a 3-D model of its shape.