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2013-02-24 23:00:29

Astro-Clairvoyant Norah Guide with Premium Astrology is extending her services above and beyond today´s traditional astrologer, to help as many as possible on their journey of enlightenment. Her most recent free service provided is a new blog series discussion on Moon sign compatibilities, and Norah has recently extended this service due to the overwhelming demand for an in depth discussion of this topic. Phoenix, Arizona (PRWEB) February 24, 2013 24 February 2013...

Mysterious Math Of The Solar Wind Deciphered By NASA
2013-02-22 14:27:36

NASA Many areas of scientific research -- Earth's weather, ocean currents, the outpouring of magnetic energy from the sun -- require mapping out the large scale features of a complex system and its intricate details simultaneously. Describing such systems accurately, relies on numerous kinds of input, beginning with observations of the system, incorporating mathematical equations to approximate those observations, running computer simulations to attempt to replicate observations, and...

Flare, Ejection And Rain All Caught In Spectacular Solar Show
2013-02-20 15:40:05

[Watch Video: Fiery Looping Rain On The Sun] Lee Rannals for redOrbit.com — Your Universe Online An eruption on the sun can be a beautiful, monstrous event, and NASA's Solar Dynamics Observatory (SDO) has helped to bring these dangerous, yet breathtaking events right to our computer screens. On July 19, 2012, the sun erupted in a solar flare, ejecting material called a coronal mass ejection (CME), creating a loop in the sun's atmosphere known as the corona. This moderately...

Fast-Growing Sunspot Observed By NASA's SDO
2013-02-20 14:28:12

NASA As magnetic fields on the sun rearrange and realign, dark spots known as sunspots can appear on its surface. Over the course of Feb. 19-20, 2013, scientists watched a giant sunspot form in under 48 hours. It has grown to over six Earth diameters across but its full extent is hard to judge since the spot lies on a sphere not a flat disk. The spot quickly evolved into what's called a delta region, in which the lighter areas around the sunspot, the penumbra, exhibit magnetic fields...

Cassini Catches Solar Wind, Helps NASA Study Particle Acceleration
2013-02-20 14:23:12

Michael Harper for redOrbit.com — Your Universe Online As it floats around the planet Saturn, the Cassini spacecraft recently got a front row seat to what NASA astronomers are calling an “unusual strong blast of solar wind.” Shortly after this “wind” blew by, Cassini began detecting particles which had been accelerated to ultra-high energies. Particles which are accelerated this much are usually found surrounding far away supernovas. This is good news for...

Alpha Centauri B May Shed Light On Our Own Sun’s Anomalies
2013-02-20 12:52:10

Michael Harper for redOrbit.com — Your Universe Online As it turns out, studying our Sun can be rather difficult. It´s not the distance so much that keeps scientists guessing — although that certainly doesn´t help. The Sun´s intense heat also keeps scientists at bay, leaving them to make some of their observations and predictions based purely on context and far away measurements. One thing astronomers have been able to observe is a significant difference in...

Experts Say Solar Superstorm May Be Imminent: Readiness Is Key
2013-02-08 09:29:17

[Watch Video: Solar Superstorm] Lawrence LeBlond for redOrbit.com - Your Universe Online A solar superstorm may be brewing and there is little we can do to prevent it from disrupting our communications and electrical systems here on Earth. But there is more we can do to prepare for such an event, according to a new report by the Royal Academy of Engineering. Authors of the study said the UK should plan to mitigate the effects of a potentially dangerous solar storm now before...

Two Coronal Mass Ejections Produced By The Sun On Feb 5
2013-02-08 08:40:32

NASA [ Watch The Video ] In the evening of Feb. 5, 2013, the sun erupted with two coronal mass ejections or CMEs that may glance near-Earth space. Experimental NASA research models, based on observations from the Solar Terrestrial Relations Observatory (STEREO) and ESA/NASA´s Solar and Heliospheric Observatory, show that the first CME began at 7 p.m. EST and left the sun at speeds of around 750 miles per second. The second CME began at 10:36 p.m. EST and left the sun at speeds of...

New Theory Of ENAs At Edge Of Solar System Checks Out With Data
2013-02-06 11:58:06

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online While our solar system contains many fascinating objects — planets, moons and the Sun, to name just a few — one of the most interesting and perplexing of these objects lies at its very edge. Our Sun sweeps charged particles through the solar system, encasing us in a cocoon that shields us from the interstellar environment. It is at the boundary of the solar system, where the solar wind slows and the...

Sun Surface Cooler Than Previously Thought
2013-02-04 19:27:46

Lee Rannals for redOrbit.com — Your Universe Online One who didn't know better would think that the closer you get to the sun, the warmer you are. However, it is actually the outer edge of the sun that you would find to be scorching, compared to the surface, and one study sought to find out why. Scientists from Northumbria University wrote in the journal Nature Communications that they used solar-imaging technology to observe the Sun's chromosphere, which is a region of the Sun's...


Latest Sun Reference Libraries

Stellar Astrophysics
2014-01-12 00:00:00

The prominent feature that allows for the existence of life on Earth is the Sun. Radiation from our closest star provides heat and energy to our planet, driving biological processes and providing the necessary conditions for liquid water to naturally exist. But our Sun is only but one star in this vast Universe. And as it turns out, most stars are quite different than the one that illuminates our day. For this reason, scientists have, for hundreds of years, attempted to study the other...

How Solar Cycles Impact Our Weather Here On Earth
2013-01-13 09:10:34

Solar cycles: what are they and why should we care about them? Solar cycles are made up of what are known as solar minimums (min) and solar maximums (max). We refer to a solar min at the time when the sun is not active with many sunspots, while a solar max is just the opposite when we see a large increase in sunspot activity. So how long do solar cycles last? Typically they run on what is known as an 11 year cycle from the max to the min and then start over again anew. As of 2012 we...

Weather Reference Library
2012-07-23 13:36:11

Being a meteorologist for over thirteen years you start to take note of many things in the atmosphere and how they repeat themselves. Our Climate is no different. The definition of climate is stated as: the collective weather data in regards to moisture and temperature for over 30 years for the same location. So to better understand our climate we need to look at this. First, we have average temperatures for given places based on the 30 year average. Some years the temps are warmer or...

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...

45_677a1afb0bebd7ebfa1c045c737a5541
2010-10-28 18:40:42

The spectroheliograph captures a photographic image of the Sun at a single wavelength of light. The wavelength chosen usually coincides with a spectral wavelength of one of the chemical elements present in the Sun. George Ellery Hale and Henri-Alexadre Deslandres developed I independently in 1890 and was further refined in 1932 by Robert R. McMath to take motion pictures. It operates by using a prism together with a narrow slit that passes a single wavelength. The light focuses on a...

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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.