Latest Plasma physics Stories

Sun Unleashes Two Coronal Mass Ejections On January 23
2013-01-25 05:43:18

[ Watch the Video: SOHO Captures CME On January 23, 2013 ] Lee Rannals for redOrbit.com - Your Universe Online The sun showed off its strength on Wednesday with two coronal mass ejections (CME), observed by both NASA and the European Space Agency instruments. NASA's Solar Terrestrial Relations Observatory (STEREO) and both of the space agencies' Solar and Heliospheric Observatory (SOHO) helped to unveil the activity during the solar maximum cycle. The CME seen at 9:55 a.m. EST on...

2013-01-23 23:03:12

An LED manufacturing advancement has resulted in the recent release of a revolutionary line of machine made retrofit LED light bulbs. This advancement will considerably lower the cost of an LED conversion and provide the energy savings, light quality and lifespan that American business has been waiting for. Southampton PA (PRWEB) January 23, 2013 For the last several years commercial planners have had a difficult decision regarding lighting conservation and exactly what to do with the...

changing face of the sun
2013-01-23 18:53:22

Lee Rannals for redOrbit.com — Your Universe Online When we take a glance at the sun, or sit down with paint to color the sky, we always see our home star as yellow, but the sun is full of much more diversity. The reason we only see yellow is because it is the brightest wavelength of light from the sun, but with special instruments, NASA is able to see all the wavelengths. With these instruments, whether they are in ground-based or space-based telescopes, we can observe light...

Energy Bursts Boost Temperature Of The Solar Corona
2013-01-23 12:11:30

Lee Rannals for redOrbit.com - Your Universe Online Scientists say they have solved a piece of the puzzle as to why the farther away you get from the surface of the Sun, the hotter you get. The visible surface, or photosphere, on the Sun is 10,000 degrees Fahrenheit, but as you move away from it, you pass through a layer of hot, ionized gas or plasma called the corona. Scientists have been puzzled for a while about how the solar atmosphere can get hotter, rather than colder, the farther...

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 IRIS Spacecraft
2013-01-19 08:48:07

NASA NASA's next Small Explorer (SMEX) mission to study the little-understood lower levels of the sun's atmosphere has been fully integrated and final testing is underway. Scheduled to launch in April 2013, the Interface Region Imaging Spectrograph (IRIS) will make use of high-resolution images, data and advanced computer models to unravel how matter, light, and energy move from the sun´s 6,000 K (10,240 F / 5,727 C) surface to its million K (1.8 million F / 999,700 C) outer...

New Sunspots Producing Space Weather
2013-01-15 05:07:09

Karen C. Fox, NASA's Goddard Space Flight Center, Greenbelt, Md. On Jan. 13, 2013, at 2:24 a.m. EST, the sun erupted with an Earth-directed coronal mass ejection or CME. Not to be confused with a solar flare, a CME is a solar phenomenon that can send solar particles into space and reach Earth one to three days later. Experimental NASA research models, based on observations from the Solar Terrestrial Relations Observatory (STEREO) and the ESA/NASA mission the Solar and Heliospheric...

Is Oxygen's Role In Core Formation Underestimated?
2013-01-11 09:37:25

redOrbit Staff & Wire Reports - Your Universe Online The Earth´s core formed under more oxidizing conditions than previously believed, claims a new study published in Thursday´s edition of the journal Science Express. Lawrence Livermore National Laboratory (LLNL) geophysicist Rick Ryerson and an international team of colleagues made the discovery following a series of laser-heated diamond anvil cell experiments at high pressure (350,000 to 700,000 atmospheres) and...

Latest Plasma physics Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

How Solar Cycles Impact Our Weather Here On Earth
2013-01-13 09:10:34

Solar cycles: what are they and why should we care about them? Solar cycles are made up of what are known as solar minimums (min) and solar maximums (max). We refer to a solar min at the time when the sun is not active with many sunspots, while a solar max is just the opposite when we see a large increase in sunspot activity. So how long do solar cycles last? Typically they run on what is known as an 11 year cycle from the max to the min and then start over again anew. As of 2012 we...

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...

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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Word of the Day
  • Like a worm in form or movement; vermiform; tortuous or sinuous; also, writhing or wriggling.
  • Like the track or trace of a worm; appearing as if worm-eaten; vermiculate.
  • Marked with fine, close-set, wavy or tortuous lines of color; vermiculated.
  • A form of rusticated masonry which is so wrought as to appear thickly indented with worm-tracks.
This word ultimately comes from the Latin 'vermis,' worm.