News tagged with dynamo

Double trouble on the Sun

(—The Sun erupted with two prominence eruptions, one after the other over a four-hour period on Nov. 16, 2012, between the hours of 1 and 5 a.m. EST. The red-glowing looped material is plasma, a hot gas made of ...

dateNov 19, 2012 in Space Exploration
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Mercury's magnetic field -- nipped in the bud

( -- Mercury, the smallest of the eight planets with a diameter of 4900 kilometres and the closest to the Sun, looks more like the Moon than the Earth from the outside. It is the only rocky planet that has a global ...

dateDec 23, 2011 in Space Exploration
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Vessel to contain cosmic force takes shape

At the heart of most celestial objects is a dynamo. The Earth's dynamo, spun to life in the molten metal core of our planet, generates a magnetic field that helps us find north and, perhaps more critically, shields us from ...

dateJul 21, 2011 in Plasma Physics
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