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Superflares From A Nearby Red Dwarf Star Observed By NASAs

Superflares From A Nearby Red Dwarf Star Observed By NASA's Swift Satellite

April Flowers for redOrbit.com - Your Universe Online The strongest, hottest and longest-lasting sequence of stellar flares ever seen from a nearby red dwarf star was detected by NASA's Swift satellite on April 23. The first salvo from this...

Latest Plasma physics Stories

fastest CME
2014-09-25 02:30:29

Karen C. Fox, NASA's Goddard Space Flight Center Two main types of explosions occur on the sun: solar flares and coronal mass ejections. Unlike the energy and X-rays produced in a solar flare – which can reach Earth at the speed of light in eight minutes – coronal mass ejections are giant clouds of solar material that take one to three days to reach Earth. Once at Earth, these ejections, also called CMEs, can impact satellites in space or interfere with radio communications. During CME...

mars and the sun
2014-09-24 07:50:31

Karen C. Fox, NASA's Goddard Space Flight Center Two main types of explosions occur on the sun: solar flares and coronal mass ejections. Unlike the energy and X-rays produced in a solar flare – which can reach Earth at the speed of light in eight minutes – coronal mass ejections are giant clouds of solar material that take one to three days to reach Earth. Once at Earth, these ejections, also called CMEs, can impact satellites in space or interfere with radio communications. During CME...

The Difference Between Flares And CMEs
2014-09-23 03:49:47

[ Watch The Video: The Difference Between CMEs And Solar Flares ] Max Gleber, NASA There are many kinds of eruptions on the sun. Solar flares and coronal mass ejections both involve gigantic explosions of energy, but are otherwise quite different. The two phenomena do sometimes occur at the same time – indeed the strongest flares are almost always correlated with coronal mass ejections – but they emit different things, they look and travel differently, and they have different...

2014-09-22 20:20:21

GREENBELT, Md., Sept. 22, 2014 /PRNewswire-USNewswire/ -- Accredited news media are invited to NASA's Goddard Space Flight Center in Greenbelt, Maryland, on Friday, Oct. 17, 2014, beginning at 9 a.m. EDT to get a firsthand look at the four Magnetospheric Multiscale, or MMS, spacecraft, tour our state-of-the-art test facilities and learn about how this mission will help improve our understanding of magnetic reconnection - a universal process where magnetic fields connect and disconnect,...

NASA Releases Interface Region Imaging Spectrograph Footage Of X-class Flare
2014-09-18 03:30:06

Karen Fox, NASA On Sept. 10, 2014, NASA's newest solar observatory, the Interface Region Imaging Spectrograph, or IRIS, mission joined other telescopes to witness an X-class flare – an example of one of the strongest solar flares -- on the sun. Combing observations from more than one telescope helps create a much more complete picture of such events on our closest star. Watch the movie to see how the flare appears different through the eyes of IRIS than it does through NASA's Solar...

energetic pulsar
2014-09-17 08:36:36

Whitney Clavin, Jet Propulsion Laboratory Our Milky Way galaxy is littered with the still-sizzling remains of exploded stars. When the most massive stars explode as supernovas, they don't fade into the night, but sometimes glow ferociously with high-energy gamma rays. What powers these energetic stellar remains? NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR, is helping to untangle the mystery. The observatory's high-energy X-ray eyes were able to peer into a particular site...

plasma during magnetic reconnection
2014-09-14 02:30:26

John Greenwald, Princeton Plasma Physics Laboratory Magnetic reconnection can trigger geomagnetic storms that disrupt cell phone service, damage satellites and blackout power grids. But how reconnection, in which the magnetic field lines in plasma snap apart and violently reconnect, transforms magnetic energy into explosive particle energy remains a major unsolved problem in plasma astrophysics. Magnetic field lines represent the strength and direction of magnetic fields. Now scientists...

Interaction_between_Venus_and_the_solar_wind
2014-09-12 05:59:31

Karen C. Fox, NASA's Goddard Space Flight Center Underscoring the vast differences between Earth and its neighbor Venus, new research shows a glimpse of giant holes in the electrically charged layer of the Venusian atmosphere, called the ionosphere. The observations point to a more complicated magnetic environment than previously thought – which in turn helps us better understand this neighboring, rocky planet. Planet Venus, with its thick atmosphere made of carbon dioxide, its...

solar flare
2014-09-11 03:30:23

Karen C. Fox, NASA's Goddard Space Flight Center The sun emitted a significant solar flare, peaking at 1:48 p.m. EDT on Sept. 10, 2014. NASA's Solar Dynamics Observatory captured images of the event. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground.  However -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel. [...

2014-09-10 23:03:20

Dr. Petrus Martens, a professor in the Department of Physics and Astronomy at Georgia State University, has received a three-year, $1.2 million NASA Grand Challenge grant to develop a system to predict solar cycles and determine the long-term frequency of events such as solar flares, potentially more than a decade in advance. (PRWEB) September 10, 2014 Dr. Petrus Martens, a professor in the Department of Physics and Astronomy at Georgia State University, has received a three-year, $1.2...


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
cacodemon
  • An evil spirit; a devil.
  • A nightmare.
  • In astrology, the twelfth house of a scheme or figure of the heavens: so called from its signifying dreadful things, such as secret enemies, great losses, imprisonment, etc.
'Cacodemon' comes from a Greek term meaning 'evil genius.'
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