Latest Geomagnetism Stories

MMS To Study Secrets Of Magnetic Reconnection
2014-05-16 03:36:18

Susan Hendrix, NASA In March 2015, NASA will launch four identical spacecraft to study how magnetic fields around Earth connect and disconnect, explosively releasing energy – a process known as magnetic reconnection. The Magnetospheric Multiscale, or MMS, mission will provide the first three-dimensional views of this fundamental process that can accelerate particles to nearly the speed of light. MMS uses Earth’s protective magnetic space environment, the magnetosphere, as a natural...

Cluster Helps To Model The Mysterious Magnetosphere Of Earth
2014-05-09 03:10:38

ESA For many years, scientists have been striving to understand the constantly changing structure and behavior of the huge magnetic bubble that surrounds our planet. One approach – pioneered by Russian scientist Nikolai Tsyganenko - has been to develop models based on data sent back by spacecraft, such as ESA's Cluster quartet. As Earth sweeps around the Sun, it is constantly bombarded by energetic particles from solar storms and deep space. Fortunately, the planet generates a...

Swarm Satellites Precise Sense Of Magnetism
2014-05-08 03:26:09

ESA Although they were launched only five months ago, ESA’s trio of Swarm satellites are already delivering results with a precision that took earlier missions 10 years to achieve. Engineers have spent the last five months commissioning the identical satellites and carefully guiding them into their orbits to provide the crucial measurements that will unravel the mysteries of Earth’s magnetic field. Swarm has a challenging task ahead. Together, the satellites will measure and...

Intense Solar Storm Narrowly Misses Earth
2014-05-02 15:33:50

[ Watch The Video: ScienceCasts: Carrington-Class CME Narrowly Misses Earth ] Science@NASA Last month (April 8-11), scientists, government officials, emergency planners and others converged on Boulder, Colorado, for NOAA's Space Weather Workshop—an annual gathering to discuss the perils and probabilities of solar storms. The current solar cycle is weaker than usual, so you might expect a correspondingly low-key meeting. On the contrary, the halls and meeting rooms were abuzz...

Space Weather Tracking From The Ground
2014-04-24 06:22:48

April Flowers for redOrbit.com - Your Universe Online How do you measure the effects of space weather on Earth-bound electronics? According to NASA heliophysicist Antti Pulkkinen, with high-voltage power transmission lines and iPads. Pulkkinen, of NASA's Goddard Flight Center, is launching a one-to-two year pilot project this summer by installing scientific substations beneath high-voltage power transmission lines operated by Virginia's Dominion Virginia Power. These substations will...

radiation belts
2014-03-20 04:40:46

[ Watch the Video: Van Allen Probes See Zebra Stripes ] redOrbit Staff & Wire Reports - Your Universe Online Data from NASA’s twin Van Allen Probes has led to the discovery of a new, potentially dangerous zebra-striped structure located in Earth’s inner radiation belt, according to new research appearing in Wednesday’s edition of the journal Nature. In the paper, lead author Aleksandr Ukhorskiy of the Johns Hopkins Applied Physics Laboratory (APL) and his colleagues explain...

2014-03-19 23:00:59

An NJIT physicist is a collaborator in the discovery of a new structure in Earth’s inner radiation belt -- a zebra-striped structure of highly energized electrons that could endanger humans in space and also damage low-earth navigation and communication satellites. Newark, NJ (PRWEB) March 19, 2014 An NJIT physicist is a collaborator in the discovery of a new structure in Earth’s inner radiation belt -- a zebra-striped structure of highly energized electrons that could endanger humans...

Van Allen Probes Helping To Refine Space Weather Computer Models
2014-03-10 07:45:30

redOrbit Staff & Wire Reports - Your Universe Online Data from the Van Allen Probes has been combined with a high-powered computer model to help researchers test and improve the forecast model to determine how the two giant near-Earth radiation belts they orbit can affect technology in space, NASA officials reported on Friday. The Van Allen radiation belts, which are teeming with rapidly-moving particles and a space weather system that varies in response to incoming solar particles...

Space Weather Shielding Provided By Plasma Plumes
2014-03-07 05:41:48

April Flowers for redOrbit.com - Your Universe Online The magnetosphere, Earth's magnetic field, stretches from the core of the planet out into space. Here, the magnetosphere meets the solar wind, a stream of charged particles emitted by the sun. The magnetosphere, for the main part, acts to shield the Earth from this high-energy solar activity. When the Earth's magnetosphere comes into contact with the sun's magnetic field in a process called "magnetic reconnection," the Earth's...

2014-01-10 23:01:29

The first powerful “X-class” solar flare of 2014, in association with another solar phenomenon, a giant cloud of solar particles known as a coronal mass ejection (CME), erupted from the sun on Tuesday, sending radiation and particles speeding toward Earth and disrupting operations on the ground. NEWARK, NJ (PRWEB) January 10, 2014 The first powerful “X-class” solar flare of 2014, in association with another solar phenomenon, a giant cloud of solar particles known as a coronal mass...

Latest Geomagnetism Reference Libraries

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...

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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The word 'bellycheer' may come from 'belle cheer', "good cheer".