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Latest Geomagnetism Stories

Several Key Discoveries During Van Allen Probes’ First Year
2013-09-01 07:49:38

redOrbit Staff & Wire Reports – Your Universe Online NASA’s twin Van Allen Probes entered their second year of service Friday having already provided a wealth of new information about the layers of energetic charged particles located above our planet. According to the US space agency, data collected by the probes since their August 30, 2012 launch has already led to “several significant discoveries” about the Van Allen radiation belts -- some of which came within the first...

Another Earth-Directed Coronal Mass Ejection
2013-08-22 06:59:09

NASA On August 21, 2013 at 1:24 am EDT, the sun erupted with an Earth-directed coronal mass ejection, or CME, a solar phenomenon that can send billions of tons of particles into space and reach Earth one to three days later. These particles cannot travel through the atmosphere to harm humans on Earth, but they can affect electronic systems in satellites and on the ground. Experimental NASA research models, based on observations from NASA’s Solar Terrestrial Relations Observatory show...

Auroras Recreated In The Lab
2013-08-22 05:08:58

April Flowers for redOrbit.com - Your Universe Online One of the most beautiful sights in North America is the Aurora Borealis, the famous Northern Lights. A team of scientists have discovered the tools necessary to recreate the colorful light show, and have brought the Northern Lights to a lab at NASA’s Langley Research Center. A device called the Planeterrella combines all the necessary ingredients - a magnetic field, charged particles, and a sphere – to create the simulation of...

NASA’s Solar Terrestrial Relations Observatory Sees An Earth Directed Coronal Mass Ejection
2013-08-20 12:53:40

NASA On August 20, 2013 at 4:24 am EDT, the sun erupted with an Earth-directed coronal mass ejection or CME, a solar phenomenon which can send billions of tons of particles into space that can reach Earth one to three days later. These particles cannot travel through the atmosphere to harm humans on Earth, but they can affect electronic systems in satellites and on the ground. Experimental NASA research models, based on observations from NASA’s Solar Terrestrial Relations Observatory...

2013-07-11 16:18:48

On July 9, 2013, at 11:09 a.m. EDT, the sun erupted with an Earth-directed coronal mass ejection or CME, a solar phenomenon that can send billions of tons of particles into space that can reach Earth one to three days later. These particles cannot travel through the atmosphere to harm humans on Earth, but they can affect electronic systems in satellites and on the ground. Experimental NASA research models, based on observations from NASA’s Solar Terrestrial Relations...

ESA Researchers Discover Solid Proof Of Plasmapheric Winds
2013-07-02 14:21:24

[WATCH VIDEO: Plasma Outflow From Plasmasphere To Magnetosphere] Lee Rannals for redOrbit.com - Your Universe Online A study published in the journal Annales Geophysicae provides the first conclusive proof of the existence of plasmaspheric wind. Researchers detected this plasmaspheric wind while analyzing data from the European Space Agency's (ESA) Cluster spacecraft. "After long scrutiny of the data, there it was, a slow but steady wind, releasing about [2.2 lbs] of plasma every...

Mysterious Third Radiation Belt Around Earth
2013-06-21 05:07:13

April Flowers for redOrbit.com - Your Universe Online Scientists have long believed that the Van Allen radiation belts, discovered in the Earth’s upper atmosphere in 1958, consisted of two doughnut-shaped rings of highly charged particles. The inner ring is comprised of high-energy electrons and energetic positive ions, and the outer ring of high-energy electrons. This past February in the journal Science, however, a team of scientists reported the surprising discovery of a third,...

NASA Wind Discovers SLAMS Magnetic Waves
2013-04-17 11:48:16

redOrbit Staff & Wire Reports - Your Universe Online Analysis of data collected by NASA´s Wind spacecraft as it traveled through the front of the Earth´s magnetosphere from 1998 through 2002 has revealed a special type of magnetic pulsations, scientists from the US space agency revealed on Tuesday. The magnetosphere, a giant area of space created by the Earth´s magnetic fields as it travels around the sun, produces a standing bow wave or bow shock as is travels...

Aurora Illuminates Sky Near Tromsø, Norway
2013-04-15 10:19:28

ESA These colorful displays are produced when electrically charged particles traveling from the Sun in the solar wind are channeled along Earth´s magnetic field lines and strike atoms high in the atmosphere. Collisions with oxygen atoms typically generate green aurora, as seen here. The link between auroras and solar activity has been apparent for centuries, but only with the aid of satellites can scientists begin to decipher the physical mechanisms causing this spectacular...


Latest Geomagnetism Reference Libraries

0_4589a7dfab720aab9585b8283e12d5f2
2010-10-21 16:58:49

The compass is a tool that helps the user navigate using the Earth's magnetic poles by using a magnetized pointer that reacts to magnetic fields. Since a compass can be used to calculate a heading it quickly improved the safety and efficiency of travel, especially ocean travel. It has only recently been replaced by Global Positioning Systems. It works by indicating the direction of the magnetic north of a planet's magnetosphere. Generally the face of a compass highlights the north, south,...

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
omphalos
  • The navel or umbilicus.
  • In Greek archaeology: A central boss, as on a shield, a bowl, etc.
  • A sacred stone in the temple of Apollo at Delphi, believed by the Greeks to mark the 'navel' or exact center-point of the earth.
'Omphalos' comes from the ancient Greek.
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