Cette image peut avoir des imperfections car il s’agit d’une image historique ou de reportage.
A NEW WAY OF LOOKING AT THE SUN The boffins at NASA have released the first-light images from their latest sun-monitoring mission, the Solar Dynamics Observatory. The mission’s high-speed, IMAX-quality photography will improve predictions of solar activity that can disrupt everything from GPS satellites to high-voltage power lines. The image was captured by the new observatory’s Atmospheric Imaging Assembly on 30 March (10). The sensor views the lower atmosphere of the sun in ultraviolet wavelengths, and captured this view as a massive plume of dense plasma erupted on the planet's surface. The new data from the Solar Dynamics Observatory won’t just help scientists trying to predict solar 'weather', like flares and coronal mass ejections, it should also help them better understand solar 'climate', including what causes the solar cycle to vary in length and intensity, and, at times, to apparently stop altogether. * photo NASA Solar Dynamics Observatory
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