![Eerie, ultra-detailed photo of a lightning 'sprite' exposes one of nature's least understood phenomena](https://cdn.mos.cms.futurecdn.net/agJjNjWidbsyvdvthC5ZWR-1200-80.jpg)
An astronomer in Slovakia captured the rare luminous phenomenon as it briefly flashed in Earth's upper atmosphere during a thunderstorm. An astronomer …
Author: Harry Baker
* VIEW the article originally published here.
** MORE curations: Al Cannistra at San Antonio ONE here.