Windy day

Cluster Spacecraft Finds Proof of Space Wind A new study provides the first conclusive proof of the existence of a space wind first proposed theoretically over 20 years ago. By analyzing data from the European Space Agency’s Cluster spacecraft, researcher Iannis Dandouras detected this plasmaspheric wind, so-called because it contributes to the loss of material from the plasmasphere, a donut-shaped region extending above the Earth’s atmosphere. The results are published in Annales Geophysicae, a journal of the European Geosciences Union (EGU). “After long scrutiny of the data, there it was, a slow but steady wind, releasing about one kg of plasma every second into the outer magnetosphere: this corresponds to almost 90 tons every day. It was definitely one of the nicest surprises I’ve ever had!” says Dandouras of the Research Institute in Astrophysics and Planetology in Toulouse, France. Read more: http://www.laboratoryequipment.com/videos/2013/07/cluster-spacecraft-finds-proof-space-wind

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