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Latest Solar wind Stories

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2009-08-20 10:00:00

On September 29, the MESSENGER spacecraft will pass by Mercury for the third time, flying 141.7 miles above the planet’s rocky surface for a final gravity assist that will enable it to enter orbit about Mercury in 2011.

2009-08-18 09:14:07

The mystery of why temperatures in the sun's outer atmosphere are higher than near the sun's surface may have been solved by Japan's Hinode satellite. James Klimchuk, an astrophysicist at NASA's Goddard Space Flight Center's Solar Physics Laboratory, says new observations by that satellite have revealed why temperatures in the solar corona, the sun's outer atmosphere, soar to several million degrees Kelvin -- much higher than temperatures nearer the sun's surface. The answer is nanoflares --...

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2009-07-17 07:10:00

Using data from the Cluster mission scientists have discovered a mechanism that can account for the heating of the solar wind.

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2009-06-30 14:00:00

Scientists said goodbye to the Ulysses solar probe on Tuesday, following 18 years of activity.

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2009-06-18 11:26:26

NASA's Interstellar Boundary Explorer (IBEX) spacecraft has made the first observations of very fast hydrogen atoms coming from the moon, following decades of speculation and searching for their existence.

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2009-06-15 08:31:30

400 years of discussion and we’re still not sure what creates the Earth’s magnetic field, and thus the magnetosphere, despite the importance of the latter as the only buffer between us and deadly solar wind of charged particles (made up of electrons and protons). New research raises question marks about the forces behind the magnetic field and the structure of Earth itself.

2009-06-03 09:58:29

University of Leicester researchers have taken a step forward in helping to create a defence for earth's technologies –from the constant threat of space weather.

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2009-06-02 11:30:00

As the closest planet to the sun, Mercury is scorching hot, with daytime temperatures of more than 800 degrees Fahrenheit (approximately 450 degrees Celsius).

2009-05-28 11:15:00

GREENBELT, Md., May 28 /PRNewswire-USNewswire/ -- Using data from NASA's THEMIS mission, a team of University of Alberta researchers has pinpointed the impact epicenter of an earthbound space storm as it crashes into the atmosphere, and given an advance warning of its arrival. (Logo: http://www.newscom.com/cgi-bin/prnh/20081007/38461LOGO) The team's study reveals that magnetic blast waves can be used to pinpoint and predict the location where space storms dissipate their massive amounts of...

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2009-05-28 10:36:04

Using data from NASA's THEMIS mission, a team of University of Alberta researchers has pinpointed the impact epicenter of an earthbound space storm as it crashes into the atmosphere, and given an advance warning of its arrival.


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
mitraille
  • Small missiles, especially grape, canister, fragments of iron, and the like, when fired, as upon an enemy at close quarters.
  • To fire mitraille at.
The word 'mitraille' comes from the Old French 'mitaille', meaning 'small coins', sometimes used to mean 'scrap iron'.