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Latest Plasma physics Stories

New Image Of Betelgeuse Reveals Hot Spots
2013-04-24 19:23:35

Lee Rannals for redOrbit.com — Your Universe Online Astronomers have snapped a very detailed image of the outer atmosphere of the red supergiant Betelgeuse. This star is the nearest red supergiant to Earth, easily visible to the unaided eye sitting on the top left shoulder of Orion the Hunter. Betelgeuse is about 1,000 times larger than our Sun and lies about 650 light years away from Earth. Astronomers took a new image with the e-MERLIN radio telescope array operated from the...

SDO Captures 3 Years Of Sun Activity In Spectacular Video
2013-04-22 19:09:25

Lee Rannals for redOrbit.com — Your Universe Online NASA has released a video of the unbroken coverage of the sun for the past three years, taken by its Solar Dynamics Observatory (SDO). The spacecraft's Atmospheric Imaging Assembly snaps a shot of the sun every twelve seconds in ten different wavelengths. The latest video shows the past three years of the sun at a pace of two images per day. [ Watch the Video: Three Years With Solar Dynamics Observatory ] The video,...

Three Coronal Mass Ejections And A Solar Flare In Three Days On The Sun
2013-04-22 11:25:57

Lawrence LeBlond for redOrbit.com - Your Universe Online NASA´s Solar Dynamics Observatory (SDO) recorded a coronal mass ejection (CME) on Saturday April 20, 2013, at 2:54 a.m. EDT. That was only to be the first of three such events over the course of the weekend. CME´s, solar phenomena that send billions of tons of solar particles and radiation speeding through space at over 500 miles per second, have the potential to affect communication systems and electronics here and in...

Late May Launch Planned For NASA's IRIS Sun-Observing Satellite, Now At Vandenberg AFB
2013-04-18 06:40:43

Lawrence LeBlond for redOrbit.com - Your Universe Online NASA´s next satellite to go into space has just arrived (April 16) at Vandenberg Air Force Base in California. The Interface Region Imaging Spectrograph (IRIS) spacecraft, which will launch no earlier than May 28, will be part of the agency's Small Explorer (SMEX) Mission, developed to deliver space exploration missions under $120 million. IRIS was designed and built at Lockheed Martin´s Space Systems Company Advanced...

NASA’s Next Space Weather Satellite To Be Built By UC Berkeley
2013-04-17 14:32:11

University of California, Berkeley NASA has awarded the University of California, Berkeley, up to $200 million to build a satellite to determine how Earth´s weather affects weather at the edge of space, in hopes of improving forecasts of extreme “space weather” that can disrupt global positioning satellites (GPS) and radio communications. The satellite mission, called the Ionospheric Connection Explorer (ICON), will be designed, built and operated by scientists at UC...

Controlling Plasma To Revolutionize Energy Generation And Storage
2013-04-17 05:22:12

[ Watch the Video: Plasma Device Could Revolutionize Energy Generation ] redOrbit Staff & Wire Reports - Your Universe Online Scientists at the University of Missouri have devised a new way to create and control plasma that could transform American energy generation and storage. Randy Curry, professor of electrical and computer engineering at the University of Missouri's College of Engineering, and his team developed a device that launches a ring of plasma at distances of up...

NASA's CINDI Celebrating Fifth Anniversary
2013-04-15 15:10:13

NASA On April 16, 2008, a suite of NASA instruments was launched into space to study a unique region of Earth´s upper atmosphere: the electrically charged region called the ionosphere. The instruments, known collectively as CINDI (Coupled Ion-Neutral Dynamics Investigation), fly aboard an Air Force Research Laboratory satellite called C/NOFS (Communications/Navigation Outage Forecasting System) to study this region that hovers some 60 to 400 miles above Earth. The ionosphere is...

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...


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...

45_7760ecc1c46f19cc327f8ce6904b6250
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
sough
  • A murmuring sound; a rushing or whistling sound, like that of the wind; a deep sigh.
  • A gentle breeze; a waft; a breath.
  • Any rumor that engages general attention.
  • A cant or whining mode of speaking, especially in preaching or praying; the chant or recitative characteristic of the old Presbyterians in Scotland.
  • To make a rushing, whistling, or sighing sound; emit a hollow murmur; murmur or sigh like the wind.
  • To breathe in or as in sleep.
  • To utter in a whining or monotonous tone.
According to the OED, from the 16th century, this word is 'almost exclusively Scots and northern dialect until adopted in general literary use in the 19th.'
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