Latest Solar wind Stories

Concordia Is Opening The Curtains
2012-11-05 09:47:32

ESA Set against a star-studded backdrop and a splash of the Milky Way, the green glow of an auroral curtain pervades the permanently dark winter skies of the South Pole. The only sign of life here is the Concordia research station that ESA uses to prepare for future long-duration missions beyond Earth. The site also caters to scientific research from geology and glaciology to climate change, astronomy and planetary magnetic fields. Even though the Sun barely peeks above the horizon...

Earth’s Magnetosphere Operates Like A Filter
2012-10-24 11:46:18

ESA´s quartet of satellites studying Earth´s magnetosphere, Cluster, has discovered that our protective magnetic bubble lets the solar wind in under a wider range of conditions than previously believed. Earth´s magnetic field is our planet´s first line of defense against the bombardment of the solar wind. This stream of plasma is launched by the Sun and travels across the Solar System, carrying its own magnetic field with it. Depending on how the solar wind´s...

Coronal Mass Ejection Captured By SOHO
2012-09-29 08:20:34

April Flowers for redOrbit.com - Your Universe Online At 10:23 pm EDT on September 27, 2012, NASA's Solar and Heliospheric Observatory (SOHO) captured an image of a particularly wide coronal mass ejection (CME) that erupted from the Sun. SOHO is an international collaborative effort between NASA and the European Space Agency (ESA) to study the Sun from its deep core to the outer corona. The SOHO spacecraft also studies the solar winds generated by solar events. The sun erupted in a...

Magnetic Turbulence Could Cause Solar Wind Temperature Rise
2012-08-19 06:44:46

redOrbit Staff & Wire Reports - Your Universe Online Magnetic turbulence is most likely the reason that solar wind moving away from our sun and our solar system is hotter than it theoretically should be, according to new research from scientists at the University of Warwick. As solar wind leaves the sun and expands beyond the solar system, it should begin to cool off due to the lack of particle collisions to dissipate energy, the university explained in a Friday press release. That...

Tracking The Sun's Electron Beams
2012-08-17 06:32:34

April Flowers for redOrbit.com - Your Universe Online Understanding weather patterns here on Earth is a complicated process, with scientists teasing apart different kinds of atmospheric movements, such as the great jet streams that can move across a whole hemisphere versus more localized, intricate flows, to create a whole picture. Those same methods and processes are used to understand the flows of the space weather system that links the Sun and the Earth as the Sun shoots material out...

Cluster Examines Thin Current Sheets In The Magnetosphere
2012-08-02 05:08:15

April Flowers for redOrbit.com - Your Universe Online The Universe is filled with plasma, a charged gas consisting of ions and electrons. Thin sheets, or boundaries, with currents separate large plasma regions. These boundaries are where most of the exciting action in space happens. Scientists at the Swedish Institute of Space Physics (IRF) have measured the fundamental properties of one of the waves mixing and accelerating plasmas within these sheets. These thin current sheets are...

Waves In The Magnetosphere's Thin Boundaries Looked At By Cluster
2012-08-01 16:08:16

Exploiting a favorable configuration of ESA's Cluster mission spacecraft, scientists have detected and characterized lower hybrid drift waves, a special kind of plasma waves that develop in thin boundaries both in space and in the laboratory. The measurement of fundamental properties of these waves was possible when two of the spacecraft were flying very close to one another in the tail of Earth's magnetosphere. With wavelengths of about 60 km, these waves appear to play an important role in...

Solar Winds Affect Earth's Magnetosphere
2012-08-01 13:04:29

April Flowers for redOrbit.com — Your Universe Online Weather has always affected our lives, but we are increasingly reliant on technology that can be disrupted by space weather. Geomagnetic storms, which are major disturbances of the magnetosphere, cause high altitude flights to be rerouted, costing many thousands of dollars per flight; cause GPS errors of up to 151 feet; and affect the International Space Station and satellites. Geomagnetic storms and other space weather...

Geotail Mission Celebrates 20th Anniversary
2012-07-28 08:59:52

Lee Rannals for redOrbit.com - Your Universe Online Twenty years ago, the United States relationship with Japan showed just how restored it was since the second world war, as the two countries' space agencies launched a joint mission together. The Geotail mission launched into space aboard a Delta II launch vehicle 20 years ago from this week, kick-starting a set of coordinated missions known as the International Solar Terrestrial Physics (ISTP) project. ISTP studied the magnetic...

Plasma Waves Move Faster Than Shockwaves
2012-07-20 08:07:31

Lawrence LeBlond for redOrbit.com - Your Universe Online The Sun and the dynamic space weather system that envelops the Earth are what researchers are trying to get a better understanding of with the help of Heliophysics nuggets -- collections of early scientific results, new research techniques and instrument updates. More than 99 percent of the matter found in the universe resembles nothing like what we have here on Earth, according to scientists from NASA´s Goddard Space Flight...

Latest Solar wind Reference Libraries

Solar Physics
2012-05-02 19:16:53

Solar Physics is a journal for solar and solar-stellar research and the study of solar terrestrial physics. Founded in 1967 by solar physicist Cornelis de Jager and publisher D. Reidel, the journal treats all aspects of solar physics, ranging from the internal structure of the Sun and its evolution, to outer corona and solar wind in interplanetary space. Solar Physics has four more than forty years been the principal journal for publications of fundamental research on the Sun. It is...

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

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...

2004-10-19 04:45:41

Corona -- The corona is the luminous "atmosphere" of the Sun extending millions of kilometers into space, most easily seen during a total solar eclipse. An interesting feature of the corona is the fact that it is much hotter than the visible "surface" of the Sun; the photosphere is approximately 6000°C compared to the corona at over one million °C. The corona is much less dense than the photosphere, however, and so produces less light. The exact mechanism by which the corona is...

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
  • The hard inner (usually woody) layer of the pericarp of some fruits (as peaches or plums or cherries or olives) that contains the seed.
This word comes from the Greek 'endon,' in, within, plus the Greek 'kardia,' heart.