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Cluster:Earth's protective bubble hasn't burst

7 Mar 2012, 17:18 UTC
Cluster:Earth's protective bubble hasn't burst
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For the first time, the loss of atmospheric ions from Earth and Mars has been observed during the same solar wind stream. In a new study, data from ESA&aposs Cluster and Mars Express spacecraft, which orbit the Earth and Mars respectively, have been used to compare the outflow of oxygen ions when the planets were aligned. The study&aposs findings reaffirm the importance of the Earth&aposs magnetic field in protecting our atmosphere from the solar wind, which had been questioned in recent years.

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