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Latest Corona Stories

2014-01-10 23:01:29

The first powerful “X-class” solar flare of 2014, in association with another solar phenomenon, a giant cloud of solar particles known as a coronal mass ejection (CME), erupted from the sun

2014-01-10 11:04:22

The first powerful "X-class" solar flare of 2014, in association with another solar phenomenon, a giant cloud of solar particles known as a coronal mass ejection (CME), erupted from the sun on Tuesday, sending radiation and particles speeding toward Earth and disrupting operations on the ground.

First X-class Flare Of 2014 Unleashed By The Sun
2014-01-08 10:55:47

The sun emitted a significant solar flare peaking at 1:32 p.m. EST on Jan.7, 2014.

NASA's Solar Dynamics Observatory Sees Giant Sunspots
2014-01-08 07:21:33

An enormous sunspot, labeled AR1944, slipped into view over the sun's left horizon late on Jan. 1, 2014.

Magnetic Field Lines
2013-12-07 04:56:08

A newly-released NASA visualization shows the process of the sun’s magnetic field changing polarity, with the positive and negative poles switching throughout the course of the 22 year magnetic solar cycle.

New Images Of Comet ISON
2013-11-27 15:08:31

As Comet ISON heads toward its closest approach to the sun — known as perihelion — on Nov. 28, 2013, scientists have been watching through many observatories to see if the comet has already broken up under the intense heat and gravitational forces of the sun.

2013-11-19 23:24:29

A complete set of mobile development, support and training services for businesses. Palo Alto, CA (PRWEB) November 19, 2013

Powering The SUn's Atmosphere
2013-11-15 09:30:08

A research team has finally found that the source of the extreme heating in the Sun's atmoshpere can be traced to magnetic oscillations known as Alfven waves.

Sunspots Moving Across The Sun
2013-11-14 14:28:37

Two large, complex sunspots are moving across the face of the sun.


Latest Corona Reference Libraries

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...

4_5d937e9435f471d0f5354cef6f8fdcda2
2004-10-19 04:45:41

Solar Prominence -- Solar prominences are large arch-shaped structures observable in the solar corona. These often have a twist and occasionally become unstable, ejecting plasma and magnetic flux out from the sun. The physics of solar prominence instability is believed to be governed by magnetic forces and magnetic helicity issues. It is thought that instability occurs when a magnetic flux tube becomes excessively twisted. ----- Click here to learn more on this topic from eLibrary:

4_c3e26bdabe1325e08e2593b25329604b2
2004-10-19 04:45:41

Solar Flare -- A solar flare is a violent eruption that explodes from a star's photosphere with energies equivalent to tens of millions of hydrogen bombs. Solar flares from the Sun send out a streams of highly energetic solar wind that can present a radiation hazard to spacecraft outside of planetary magnetospheres and can disrupt radio signals on Earth. Solar flares were first observed on the Sun in 1859 by English astronomer Richard Carrington. They have also been observed to...

4_a9775d2328a386c7976f6f9895c6d2ac2
2004-10-19 04:45:40

The Sun -- intensely hot, self-luminous body of gases at the center of the solar system. Its gravitational attraction maintains the planets, comets, and other bodies of the solar system in their orbits. The sun is actually a star of about medium size; it appears larger than the other stars because of its relative nearness to the earth. The earth's distance from the sun varies from 91,377,000 mi (147,053,000 km) at perihelion to 94,537,000 mi (152,138,000 km) at aphelion (see apsis). The...

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Word of the Day
chickabiddy
  • A young chicken: also used as a pet name for children.
The word 'chickabiddy' may come from 'chick' plus 'biddy', a name used in calling a hen or chicken.
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