Magnetic Field Model Of Sun Explains Solar Activity Cycles
April Flowers for redOrbit.com - Your Universe Online Since the 18th Century, scientists have been aware that the Sun oscillates between periods of high and low solar activity in an 11-year cycle. So far, though, they have been unable to fully...
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[WATCH VIDEO: Coronal Mass Ejection On May 17, 2013] Lawrence LeBlond for redOrbit.com - Your Universe Online On May 17, the sun unleashed an Earth-directed coronal mass ejection (CME) at 5:24 a.m. EDT sending billions of tons of solar particles into space. The matter from this CME will likely reach Earth in one to three days and potentially affect electronic systems in satellites and possibly the International Space Station (ISS). NASA research models based on observations from...
Management to Host Investor Webcast on May 23rd to Discuss Business Updates SAN DIEGO, May 14, 2013 /PRNewswire/ -- Envision Solar International, Inc. (EVSI: OTCQB) ("Envision Solar," or the "Company"), a manufacturer and designer of unique, architecturally accretive, renewable energy systems, today announced results for the three months ended March 31, 2013. Recent Company Highlights: In April, completed first Cadillac branded Solar Tree® at Fremont Cadillac dealership in...
NASA Given a legitimate need to protect Earth from the most intense forms of space weather -- great bursts of electromagnetic energy and particles that can sometimes stream from the sun -- some people worry that a gigantic "killer solar flare" could hurl enough energy to destroy Earth, but this is not actually possible. Solar activity is indeed currently ramping up toward what is known as solar maximum, something that occurs approximately every 11 years. However, this same solar cycle...
Lawrence LeBlond for redOrbit.com - Your Universe Online On Sunday (May 12) the Sun emitted a significant solar flare that is being classified as the first X-class event of 2013. The X1.7 flare, which peaked at about 10 p.m. EDT, was also associated with another solar event known as a coronal mass ejection (CME). While CMEs can release radiation and solar material in the direction they were produced, Sunday’s phenomenon was not directed at Earth. While solar flares also have the...
NASA The sun emitted a mid-level solar flare, peaking at 1:32 pm EDT on May 3, 2013. Solar flares are powerful bursts of radiation. Harmful radiation from a flare cannot pass through Earth's atmosphere to physically affect humans on the ground, however -- when intense enough -- they can disturb the atmosphere in the layer where GPS and communications signals travel. This disrupts the radio signals for as long as the flare is ongoing, and the radio blackout for this flare has already...
April Flowers for redOrbit.com - Your Universe Online The temperature near the Earth's core is approximately 10,800 degrees Fahrenheit [1] a team of scientists has determined. This is 1,800 degrees hotter than in a previous experiment conducted 20 years prior. The new measurements confirm geophysical models that the temperature difference between the solid core and the mantle above must be at least 1,500 degrees F to explain why the Earth has a magnetic field. The team was even able to...
Lee Rannals for redOrbit.com – Your Universe Online NASA has released a video of the unbroken coverage of the sun for the past three years, taken by its Solar Dynamics Observatory (SDO). The spacecraft's Atmospheric Imaging Assembly snaps a shot of the sun every twelve seconds in ten different wavelengths. The latest video shows the past three years of the sun at a pace of two images per day. [ Watch the Video: Three Years With Solar Dynamics Observatory ] The video, released...
Lawrence LeBlond for redOrbit.com - Your Universe Online NASA’s Solar Dynamics Observatory (SDO) recorded a coronal mass ejection (CME) on Saturday April 20, 2013, at 2:54 a.m. EDT. That was only to be the first of three such events over the course of the weekend. CME’s, solar phenomena that send billions of tons of solar particles and radiation speeding through space at over 500 miles per second, have the potential to affect communication systems and electronics here and in orbit...
RALEIGH, N.C. and WASHINGTON, April 18, 2013 /PRNewswire/ -- ABB (NYSE: ABB), a global leader in power and automation technologies, and Distributed Sun LLC (D-SUN), a leading solar development and finance platform company, today announced they have entered into a Memorandum of Understanding for Distributed Sun to provide a wide range of services acting as ABB's preferred "go-to market vehicle" for U.S. microgrid project development and finance solutions. The companies will drive...
redOrbit Staff & Wire Reports - Your Universe Online Analysis of data collected by NASA’s Wind spacecraft as it traveled through the front of the Earth’s magnetosphere from 1998 through 2002 has revealed a special type of magnetic pulsations, scientists from the US space agency revealed on Tuesday. The magnetosphere, a giant area of space created by the Earth’s magnetic fields as it travels around the sun, produces a standing bow wave or bow shock as is travels through space....
Latest Sun Reference Libraries
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...
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...
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 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...
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...
