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Latest Ring current Stories

764882e1586baf6a0ea7bf076f7a338f1
2010-07-31 07:10:00

Researchers using the four spacecraft of ESA's Cluster mission have uncovered the long journey that energetic ions undergo during geomagnetic storms and how they ultimately precipitate into the Earth's atmosphere. Such precipitation affects the composition of the ionosphere, preventing GPS and communications satellites from operating correctly. The Earth's magnetic field acts a buffer zone, shielding the Earth from the permanent flow of ionized matter coming from the Sun. As a result of the...


Latest Ring current Reference Libraries

Ring Current
2004-10-19 04:45:44

Ring Current -- A ring current is an electric current carried by charged particles trapped in a planet's magnetosphere. It is caused by the longitudinal drift of energetic (10-200 keV) particles. Earth's Ring Current Earth's ring current is responsible for geomagnetic storms. The ring current system consists of a band, at a distance of 3-5 RE(1), which lies in the equatorial plane and circulates clockwise around the Earth (when viewed from the north). The particles of this region...

4_58d180de6d0f28286cf3bc85a49cb91c2
2004-10-19 04:45:41

Van Allen Radiation Belt -- The Van Allen radiation belt is a torus of energetic charged particles around Earth, trapped by Earth's magnetic field. The presence of a radiation belt had been theorized prior to the Space Age and the belt's presence was confirmed by the Explorer I on January 31, 1958 and Explorer III missions, under Doctor James Van Allen. The trapped radiation was first mapped out by Explorer IV and Pioneer III. Qualitatively, it is useful to view this belt as consisting...

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Word of the Day
omadhaun
  • A fool; a simpleton: a term of abuse common in Ireland and to a less extent in the Gaelic-speaking parts of Scotland.
This word is partly Irish in origin.