Spacecrafts witness a new facet of Earth's magnetic behaviour

Five spacecraft from two ESA missions unexpectedly found themselves engulfed by waves of electrical and magnetic energy as they travelled through Earth’s night-time shadow on 5 August 2004. The data collected by the spacecraft are giving scientists an important clue to the effects of 'space weather' on Earth’s magnetic field.

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<p><a href="http://www.physorg.com/news62919573.html">Spacecrafts witness a new facet of Earth's magnetic behaviour</a></p> <p>Five spacecraft from two ESA missions unexpectedly found themselves engulfed by waves of electrical and magnetic energy as they travelled through Earth’s night-time shadow on 5 August 2004. The data collected by the spacecraft are giving scientists an important clue to the effects of 'space weather' on Earth’s magnetic field.</p>