Latest Plasma physics Stories

New Theory Of ENAs At Edge Of Solar System Checks Out With Data
2013-02-06 11:58:06

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online While our solar system contains many fascinating objects — planets, moons and the Sun, to name just a few — one of the most interesting and perplexing of these objects lies at its very edge. Our Sun sweeps charged particles through the solar system, encasing us in a cocoon that shields us from the interstellar environment. It is at the boundary of the solar system, where the solar wind slows and the...

Sun Surface Cooler Than Previously Thought
2013-02-04 19:27:46

Lee Rannals for redOrbit.com — Your Universe Online One who didn't know better would think that the closer you get to the sun, the warmer you are. However, it is actually the outer edge of the sun that you would find to be scorching, compared to the surface, and one study sought to find out why. Scientists from Northumbria University wrote in the journal Nature Communications that they used solar-imaging technology to observe the Sun's chromosphere, which is a region of the Sun's...

New Rocket Project Aims To Study Auroral Wind Of Northern Lights
2013-02-01 13:41:57

Lawrence LeBlond for redOrbit.com - Your Universe Online For many in the extreme upper latitudes of the Northern Hemisphere, the Aurora borealis (better known as the Northern Lights) offer breathtaking displays of color and lights, dancing effortlessly across the night sky. These lights, which are caused by solar winds bouncing off the Earth´s upper atmosphere, are typically visible only around the Polar ℠auroral zone´ due to the strong magnetic forces around this region....

Sun Erupted With A Coronal Mass Ejection
2013-02-01 10:15:44

NASA [ Watch The Video ] On Jan. 31, 2013 at 2:09am EST, the sun erupted with an Earth-directed coronal mass ejection or CME. Experimental NASA research models, based on observations from the Solar Terrestrial Relations Observatory (STEREO) and ESA/NASA´s Solar and Heliospheric Observatory, show that the CME left the sun at speeds of around 575 miles per second, which is a fairly typical speed for CMEs. Historically, CMEs at this speed are mild. Not to be confused with a solar...

Venus Caught Looking Like A Comet
2013-01-30 04:35:17

[ Watch the Video: What is Venus? ] John P. Millis, Ph.D. for redOrbit.com — Your Universe Online At the very edges of the Earth´s atmosphere, where the Earth´s magnetic field begins, solar radiation strips electrons from the tenuous gas that is slowly leaking into space. This region, known as the ionosphere is famously responsible for allowing terrestrial radio transmissions over great distances. During World War II, for example, radio operators would...

Astronomers Puzzled By Chameleon-Like Behavior Of Reverse Pulsar
2013-01-25 10:42:24

April Flowers for redOrbit.com - Your Universe Online Pulsars are one of the most baffling classes of astronomical objects. Originally discovered as flickering sources of radio waves, pulsars were soon interpreted as rapidly rotating and strongly magnetized neutron stars about the size of a small city. Because of the oppositely directed beams of radiation emitted from their magnetic poles, pulsars are like cosmic lighthouses. The star spins and the beams sweep past the Earth, displaying a...

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...

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...

More Articles (18 articles) »
Word of the Day
  • A somewhat riotous parade, accompanied with the blowing of tin horns, and other discordant noises; also, a burlesque serenade; a charivari.
'Callithump' is a back-formation of 'callithumpian,' a 'fanciful formation' according to the Oxford English Dictionary. However, the English Dialect Dictionary, says 'Gallithumpians' is a Dorset and Devon word from the 1790s that refers to 'a society of radical social reformers' or 'noisy disturbers of elections and meetings.'