Credit: ESO
When the ESO people were testing their 20 W yellow guide star laser at Wendelstein Observatory, an intense summer thunderstorm approached.
ESO issued a webcast for this: How To Stop a Star’s Twinkle
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September 6th, 2011 § 2
Credit: ESO
When the ESO people were testing their 20 W yellow guide star laser at Wendelstein Observatory, an intense summer thunderstorm approached.
ESO issued a webcast for this: How To Stop a Star’s Twinkle