Published in Health and Medicine Week, December 11th, 2006
Ever since the late 1970s, scientists have known of a similar polar vortex on Earth's nearest neighbor. For six months now, ESA's Venus Express has been studying this enigmatic atmospheric structure.
NASA's Pioneer Venus spacecraft discovered the north polar vortex over 25 years ago. It is perhaps the most puzzling vortex to be found in the Solar System because it has two 'eyes'.
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