Home > Cosmic Craziness > A ‘Coronal Hole’ in the Sun is Spewing Solar Wind Toward Earth

A ‘Coronal Hole’ in the Sun is Spewing Solar Wind Toward Earth

07/15/2011 Leave a comment Go to comments

“A dark gap in the sun’s atmosphere–a ‘coronal hole’–is spewing solar wind toward Earth. Estimated time of arrival: July 19th. This morning, UV-filtered telescopes onboard NASA’s Solar Dynamics Obervatory photographed the opening:

Coronal holes are places where the sun’s magnetic field opens up and allows hot gas to escape. A million mile-per-hour stream of solar wind flowing from this hole could spark polar geomagnetic storms when it arrives early next week. High-latitude sky watchers should be prepared for auroras.” Source.

Categories: Cosmic Craziness
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