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Spotlighting The Sun - Partial Solar Eclipse Shows Off

Spotlighting The Sun - Partial Solar Eclipse Shows Off Massive Sunspot

Provided by Ivy F. Kupec, National Science Foundation Astronomers with the National Science Foundation (NSF)-funded National Optical Astronomy Observatory (NOAO) captured pictures not only of Thursday's partial solar eclipse, but also of the...

Latest Solar wind Stories

coronal mass ejection
2014-10-17 11:00:02

Provided by Dwayne Brown, NASA Headquarters NASA's Interface Region Imaging Spectrograph (IRIS) has provided scientists with five new findings into how the sun’s atmosphere, or corona, is heated far hotter than its surface, what causes the sun’s constant outflow of particles called the solar wind, and what mechanisms accelerate particles that power solar flares. The new information will help researchers better understand how our nearest star transfers energy through its atmosphere...

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...

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...

January 2005 solar storm
2014-08-29 03:30:12

Karen C. Fox, NASA's Goddard Space Flight Center A space weather storm from the sun engulfed our planet on Jan. 21, 2005. The event got its start on Jan. 20, when a cloud of solar material, a coronal mass ejection or CME, burst off the sun and headed toward Earth. When it arrived at our planet, the ring current and radiation belts surrounding Earth swelled with extra particles, while the aurora persisted for six hours. Both of these are usually signs of a very large storm – indeed, this...

solar probe plus
2014-08-12 12:21:17

WOODLAND HILLS, Calif., Aug. 12, 2014 /PRNewswire/ -- Northrop Grumman Corporation (NYSE: NOC) has been awarded a contract from the Johns Hopkins University Applied Physics Laboratory (APL) to supply its space inertial reference system for NASA's Solar Probe Plus program. http://photos.prnewswire.com/prnvar/20121024/LA98563LOGO Photos accompanying this release are available at http://media.globenewswire.com/noc/mediagallery.html?pkgid=27020. Under a nearly $3 million contract,...

voyager heliosphere
2014-08-05 03:00:07

Southwest Research Institute Scientists on Sunday highlighted an impressive list of achievements in researching the outer heliosphere at the 40th International Committee on Space Research (COSPAR) Scientific Assembly in Moscow. “Between NASA’s Voyager and IBEX missions, it’s an incredible time for outer heliospheric science,” says Dr. Dave McComas, IBEX principal investigator and assistant vice president of the Space Science and Engineering Division at Southwest Research...

voyager 1
2014-07-24 03:48:02

redOrbit Staff & Wire Reports - Your Universe Online Nearly two years ago, NASA scientists first announced that the Voyager 1 spacecraft had departed the heliosphere and passed into interstellar space – but new research suggests the historic proclamation might have been somewhat premature. Even though there have been multiple observations supporting the Voyager mission team’s claims, including data collected from a new “tsunami wave” generated by the sun earlier this month,...

captured asteroid
2014-06-27 04:02:00

Gerard LeBlond for redOrbit.com - Your Universe Online [ Watch the Video: Plasma Simulation Of The Solar Wind And A Near-Earth Asteroid ] Space appears to be an endless vacuum void of sound, but it’s not. Electric activity not visible to the naked eye emerges from asteroids drifting through space, and NASA is now in the process of sending astronauts to an asteroid to explore its electrical environment. Solar winds from the sun travel through space about a million miles per hour and...

stereo images corona
2014-06-26 04:56:26

redOrbit Staff & Wire Reports - Your Universe Online [ Watch the Video: STEREO View Of Solar Atmosphere ] Astronomers using NASA’s Solar Terrestrial Relations Observatory (STEREO) have discovered that the atmosphere of solar particles surrounding the sun is larger than previously believed, extending out some five million miles above the surface, the US space agency announced on Wednesday. The solar atmosphere, which is also known as the corona, consists of particles “through...

Earth's Magnetosphere Doesn't Stop All Solar Wind From Breaking Through
2014-06-11 14:41:29

Brett Smith for redOrbit.com - Your Universe Online Using data from four European Space Agency satellites that fly in formation in the Earth's magnetic field, researchers have uncovered new information on how the solar wind can break through the Earth’s magnetosphere and disrupt modern life. According to a new report in the journal Physical Review Letters, when the solar wind meets the environment around the Earth – an electromagnetic phenomenon called an asymmetric magnetic...


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...

6_02132514ceb20be8f009384c891c09472
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...

6_9f9676753bcc717a861f93bfceb7d2f82
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...

6_7a298dad9db3084ba8f1dbe9ba6be2442
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
barghest
  • A goblin in English folklore, often appearing in the shape of a large dog and believed to portend imminent death or misfortune.
  • A ghost, wraith, hobgoblin, elf, or spirit.
The origin of 'barghest' is not known, but it may be from perhaps burh-ghest, town-ghost, or German Berg-geist (mountain spirit) or Bär-geist (bear-spirit).
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