the bright spot actually appeared in the planet's southern hemisphere four days before Melillo saw it and that it has since begun to spread out, becoming stretched by the wind's in Venus' thick atmosphere. But just what caused the brightening is still a mystery. Theories have abounded, from a volcanic eruption to solar particles interacting with the planet's atmosphere. |
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Sheila Samples is an Oklahoma writer and a former civilian US Army Public Information Officer. She is a Managing Editor for OpEd News, and a regular contributor for a variety of Internet sites.