New Zealand Local Weather Forum
Climate and Science => Space, Science and Nature => Topic started by: Deano on May 22, 2013, 05:22:29 PM
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It is a rarely seen form of lightning confirmed only about 25 years ago, a red sprite.
Recent research has shown that following a powerful positive cloud-to-ground lightning strike, red sprites may start as 100-meter balls of ionized air that shoot down from about 80-km high at 10 percent the speed of light and are quickly followed by a group of upward streaking ionized balls.
Full story from & pictureNasa APOD (http://apod.nasa.gov/apod/ap130522.html)