On Sunday, Earth's magnetic field was pelted by a solar wind stream reaching velocities of more than 600 kilometers (372 miles) per second.
Solar wind occurs when a stream of highly energized particles and plasma can no longer be held back by the Sun's gravity and burst out towards Earth., but these emissions are thought to come from large bright patches on the Sun known as 'coronal holes' and scientists do a great job of monitoring them from here on Earth.
noticed light solar wind streams, which increased significantly and unexpectedly throughout the day. "These days, the active sun is producing so many minor explosions, it is easy to overlook faint CMEs heading for Earth."
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