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Latest Corona Stories

NASA Observatory Captures Another X-Class Solar Flare
2012-10-23 15:32:34

NASA said its Solar Dynamics Observatory (SDO) captured the sun erupting with an X1.8 class solar flare on Monday.

Solar Plasma Wave Unleashed
2012-10-21 08:45:32

A giant super-hot wave of solar plasma larger than the planet Earth erupted from the Sun at 4:15 a.m. EDT and was caught in amazing high-definition detail by a NASA spacecraft.

Coronal Mass Ejection Captured By SOHO
2012-09-29 08:20:34

At 10:23 pm EDT on September 27, 2012, NASA's Solar and Heliospheric Observatory captured an image of a particularly wide coronal mass ejection that erupted from the Sun.

Coronal Mass Ejections Linked To Sun's Interior
2012-09-25 04:30:27

After forty long years of debates and theories and counter-theories, the community of solar physics scientists has still failed to come to a consensus about what causes the sun's powerful coronal mass ejections.

Astronomers Look Long At Coronal Mass Ejections
2012-09-20 18:54:36

Astronomers reported in The Astrophysical Journal they have a better understanding of the temperatures of the coronal cavities in Coronal Mass Ejections (CMEs).

2012-09-19 23:00:38

US-based LED Sign manufacturer, Vantage LED, dedicates itself as a Trusted Manufacturer, Resource, and Power Partner in the LED Sign industry.

Radiation From Sun’s Solar Whip Is Expected To Reach Earth Today
2012-09-04 07:45:16

Scientists from NASA have discovered an enormous ‘solar whip’ on the surface of the Sun and have warned that radiation from the phenomenon is heading straight toward Earth, arriving on our doorstep sometime today.

2012-09-03 23:00:06

An LED Sign Company that started in 2003 is poised to dedicate itself as a Trusted Manufacturer, Resource, and Partner in the LED Sign industry.

IDEA! Coronal Mass Ejection From The Sun
2012-08-28 14:51:12

The sun sent off another coronal mass ejection (CME) last week, but this time the plasma burst showed up in the form of a light bulb.


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
ecotone
  • A transitional zone between two communities containing the characteristic species of each.
The word 'ecotone' comes 'eco-' plus a Greek root meaning 'tension'.