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Latest Corona Stories

2013-08-17 23:03:06

Rodent Guys is now offering 60-day guarantee for gopher extermination and mole removal service making it the longest guarantee for gopher control in Southern California. Riverside, CA (PRWEB) August 17, 2013 Riverside and Corona, California has a huge gopher population, making gopher extermination a widely used service for property owners. Some pest control companies offer gopher removal as part of their services along with termites, bed bugs and a list of many other services. Rodent...

2013-08-12 23:03:11

As SureFire CPR opens its doors in Corona, California, they welcome you to sign up for one of their CPR classes. Orange County, CA (PRWEB) August 12, 2013 “SureFire CPR loves being able to open new locations for our clients to have more convenience in scheduling their CPR training. SureFire CPR works to provide solutions for these types of training, it gives them great pleasure to be able to offer more opportunities, in more locations so that they can help more people to get the vital...

Stunning Solar Images From Big Bear
2013-08-07 08:51:48

April Flowers for redOrbit.com - Your Universe Online New and remarkably detailed photos of the Sun have been obtained by researchers at the New Jersey Institute of Technology's (NJIT) Big Bear Solar Observatory (BBSO) in Big Bear, California, with the New Solar Telescope (NST). Never-before-seen details of solar magnetism revealed in photospheric and chromospheric features are observed in these new photographs. "With our new generation visible imaging spectrometer (VIS), the solar...

Sounding Rocket Getting Ready To Study Active Regions On The Sun
2013-08-03 07:59:17

NASA At NASA's White Sands Test Facility in Las Cruces, N.M., a sounding rocket is being readied for flight. Due to launch on Aug. 8, 2013, the VERIS rocket, short for Very high Resolution Imaging Spectrometer, will launch for a 15-minute trip carrying an instrument that can measure properties of the structures in the sun's upper atmosphere down to 145 miles across, some eight times clearer than any similar telescope currently in space. When it comes to observing the sun, different...

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

NASA 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. Experimental NASA research models based on observations from NASA's Solar Terrestrial Relations Observatory, or STEREO, show that the CME was not Earth-directed, but may pass Mars.  It left the sun at around 715 miles per second, which is a fairly fast speed...

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

Lee Rannals for redOrbit.com - Your Universe Online A new video posted by the European Space Agency (ESA) shows two solar eruptions taking place side-by-side. The video, taken by ESA and NASA's Solar and Heliospheric Observatory (SOHO) on July 1 through 2 this year, shows two coronal mass ejections (CMEs) launching plasma into interplanetary space. CMEs are huge clouds of magnetized plasma ejecting from the Sun's atmosphere, which is known as the corona. These ejections comprise...

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

Karen C. Fox, NASA's Goddard Space Flight Center, Greenbelt, Md. 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. Coronal holes are dark, low density regions of the sun's outermost atmosphere, the corona. They contain little solar material, have lower temperatures, and therefore, appear much darker than their surroundings. Coronal holes are a...


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
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.