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Latest Magnetosphere Stories

NASA Assigns Two Spacecraft To New Moon Study Mission
2013-07-10 08:59:08

April Flowers for redOrbit.com - Your Universe Online After successful completion of their science objectives earlier this year, two NASA spacecraft have been assigned a new mission to study how solar wind electrifies, alters and erodes the moon's surface. The data collected could reveal valuable information for future explorers and give planetary scientists a hint of what's happening on other worlds around the Solar System. The new mission's name is ARTEMIS, or Acceleration,...

Stellar Magnetic Fields Affect Possibility For Life Beyond Earth
2013-07-05 04:31:00

John P. Millis, PhD for redOrbit.com - Your Universe Online The presence of an atmosphere - among many other factors - is vital for the evolution of life as we know it on a planet. However, this seemingly simple requirement is bathed in a multitude of variables that can affect its creation and existence. Thus, establishing an atmosphere is by no means a trivial detail. Scientists believe mechanisms such as volcanic eruptions, other tectonic activity and even comet impacts could all play...

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...

Five Year Anniversary Of Stereo Imaging For NASA's TWINS
2013-06-23 04:12:37

redOrbit Staff & Wire Reports - Your Universe Online This month marks the fifth anniversary of NASA’s Two Wide-angle Imaging Neutral-atom Spectrometers (TWINS) missions, which are stereoscopically imaging the mysterious and dynamic region surrounding Earth known as the magnetosphere, the US space agency announced on Saturday. The TWINS A & B probes were launched on June 15, 2008, and according to NASA, since that time they have been orbiting in widely separated planes so that...

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...

NASA's MAVEN Spacecraft Designed To Study Mars' Magnetic Field
2013-03-27 14:43:06

WATCH VIDEO: [NASA | MAVEN Magnetometer] Lee Rannals for redOrbit.com — Your Universe Online NASA's MAVEN spacecraft is scheduled for launch later this year, and with it will launch an instrument designed to study Mars' magnetic field. The Mars Atmosphere and Volatile Evolution (MAVEN) mission will be carrying a sensitive magnetic-field instrument that will help investigate what remains of Mars' magnetic "shield." This Maven magnetometer will be playing a key role in studying...

Understanding The Magnetosphere Better Than Ever With Help From THEMIS
2013-02-20 10:47:18

NASA On Earth, scientists can observe weather patterns, and more importantly can predict them, through the use of tens of thousands of weather observatories scattered around the globe. Up in the space surrounding Earth -- a space that seethes with its own space weather made of speeding charged particles and constantly changing magnetic fields that can impact satellites — there are only a handful of spacecraft to watch for solar and magnetic storms. The number of observatories has...

Auroras Exist Elsewhere Besides Earth, Say Planetary Scientists
2013-01-21 15:01:22

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Every year, eager sky watchers travel to the northern reaches of the Earth to catch a glimpse of the northern lights. This spectacle of color in the atmosphere — the Aurora Borealis and its companion to the south, the Aurora Australis — arises as the solar wind interacts with our atmosphere. When charged particles from our Sun hit our atmosphere, oxygen and nitrogen atoms become excited. As the atoms relax,...

NASA Cluster Mission Sheds Light On Mysteries Of Solar Winds
2013-01-09 14:42:24

Brett Smith for redOrbit.com - Your Universe Online Data collected from the European Space Agency´s (ESA) Cluster Mission showed for the first time how turbulence within solar wind can create a warming effect as the charged particles travel away from the sun. The solar wind is formed by electrically charged plasma being ejected from the sun´s super hot atmosphere. According to a new report in the new issue of Physical Review Letters based on Cluster data, very small...


Latest Magnetosphere Reference Libraries

Planetary and Space Science
2012-05-28 10:21:45

Planetary and Space Science is a peer-reviewed scientific journal established in 1959 and published by Elsevier 15 times per year. As of May 2012, the editor-in-chief is Rita Schulz (The Netherlands). The journal publishes original research articles and short communications. The main focus is on solar system processes which encompass multiple areas of the natural sciences. Research that involves planetary and space sciences involves many disciplines. Celestial mechanics is part of these...

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2013-03-16 00:00:00

Hannes Olof Gösta Alfvén (May 30, 1908 - April 2, 1995) was a Swedish plasma physicist born in Norrköping, Sweden. Alfvén received his PhD from the University of Uppsala in 1934. His thesis was titled "Investigations of the Ultra-short Electromagnetic Waves." He was originally trained as an electrical power engineer and later moved on to research and teaching in the fields of plasma physics. Alfvén made many contributions to plasma physics, including theories describing the...

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...

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2004-10-19 04:45:41

Heliopause -- The heliopause is the boundary where our Sun's solar wind is stopped by the interstellar medium. The solar wind blows a "bubble" in the interstellar medium (the rareified hydrogen and helium gas that permeates the galaxy). The point where the solar wind's strength is no longer great enough to push back the interstellar medium is known as the heliopause, and is often considered to be the outer "border" of the solar system. The distance to the heliopause is not precisely...

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2004-10-19 04:45:41

Aurora -- The Polar Aurora are natural displays of light in the sky that can be seen with the unaided eye only at night. An auroral display in the Northern Hemisphere is called the aurora borealis, or the northern lights; in the Southern Hemisphere it is called the aurora australis. Auroras are the most visible effect of the sun's activity on the earth's atmosphere. The beautiful and often eerie curtains of light in the night time sky have been observed by people for millennia. An aurora...

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Word of the Day
mallemaroking
  • Nautical, the visiting and carousing of sailors in the Greenland ships.
This word is apparently from a confusion of two similar Dutch words: 'mallemerok,' a foolish woman, and 'mallemok,' a name for some persons among the crew of a whaling vessel.