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Attention all Cloudspotters

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Holes over Louisiana

'Hole punch clouds', also known as 'fallstreak holes', occur when patches of high cloud freeze and fall as ice crystals, leaving a dramatic gap behind. You can see examples of fallstreak holes in our cloud photography gallery. The formations only appear in cloud layers consisting largely

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Martian Clouds

NASA's Mars Expolration Rover turns out to be a robot with a penchant for cloudspotting. In October 2006, during a routine communications pass, it filmed some of the red planet's clouds and gave us a glimpse at how cloudscapes on Mars compare to those on

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