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Latest Corona Stories

Coronal Mass Ejection Witnessed By NASA's STEREO
2013-07-23 08:59:36

On July 22, 2013, at 2:24 a.m. EDT, the sun erupted with a coronal mass ejection or CME, a solar phenomenon that can send billions of tons of solar particles into space that can affect electronic systems in satellites.

SOHO Video Shows Eruptions On Sun
2013-07-22 18:13:12

A new video posted by the European Space Agency (ESA) shows two solar eruptions taking place side-by-side.

Large Coronal Hole Near the Sun's North Pole
2013-07-22 08:58:30

The European Space Agency/NASA Solar and Heliospheric Observatory, or SOHO, captured this image of a gigantic coronal hole hovering over the sun's north pole on July 18, 2013, at 9:06 a.m. EDT.

Solar Tsunami Measures Sun Magnetic Field
2013-07-11 12:19:51

A solar tsunami has provided scientists with the first accurate estimates of the Sun's magnetic field.

Magnetic Waves Responsible For Keeping Sun's Corona Heated
2013-07-09 15:10:08

Astronomers at the 44th meeting of the Solar Physics Division (SPD) of the American Astronomical Society are shedding light on the Sun's coronal heating mystery.

Space Weather Prediction Systems Need To Be More Reliable
2013-07-06 04:29:18

The residents of Earth have a vested interest in being able to accurately predict solar activity, particularly events such as solar flares and coronal mass ejections (CMEs).

Fascinating Features On Sun Captured By Solar Dynamics Observatory
2013-07-05 13:32:39

Scientists studying the solar atmosphere have spotted some fascinating moving features in the Sun's sky.

2013-07-03 23:18:22

Beverly Hills Hair Restoration is now offering hair transplant consultations to those in Corona and surrounding cities in Riverside County. Corona, CA (PRWEB)

2013-07-02 23:23:58

Vantage LED is empowering their dealer partners’ identity by helping to tell their stories about their companies, their clients/projects and their partnership with Vantage LED by offering complimentary


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
saggar
  • A ceramic container used inside a fuel-fired kiln to protect pots from the flame.
The word 'saggar' may come from 'safeguard'.
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