Aurora Alert: The Sun is Waking Up!
August 4, 2010
NASA's Solar Dynamics Observatory snapped this X-ray photo of the Sun early in the morning of Sunday, August 1st. The dark arc near the top right edge of the image is a filament of plasma blasting off the surface - part of the coronal mass ejection. The bright region is an unassociated solar flare. When particles from the eruption reach Earth on the evening of August 3rd/4th, they may trigger a brilliant auroral display known as the Northern Lights.
Topics: Environment, Technology Internet, Aurora, Space plasmas, Plasma physics, Coronal mass ejection, Solar flare, Corona, Sun, Aurora Alert, NASA's Solar Dynamics Observatory, X-ray, National Aeronautics and Space Administration