Latest Plasma physics Stories
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.
NASA’s next satellite to go into space has just arrived (April 16) at Vandenberg Air Force Base in California. The Interface Region Imaging Spectrograph (IRIS) spacecraft, which will launch no earlier than May 28, will complement the Small Explorer (SMEX) Mission.
NASA has awarded the University of California, Berkeley, up to $200 million to build a satellite to determine how Earth’s weather affects weather at the edge of space, in hopes of improving forecasts of extreme “space weather” that can disrupt global positioning satellites (GPS) and radio communications.
Scientists at the University of Missouri have devised a new way to create and control plasma that could transform American energy generation and storage.
On April 16, 2008, a suite of NASA instruments was launched into space to study a unique region of Earth’s upper atmosphere: the electrically charged region called the ionosphere.
These colorful displays are produced when electrically charged particles traveling from the Sun in the solar wind are channeled along Earth’s magnetic field lines and strike atoms high in the atmosphere.
Computational models indicate that creating a solar system, such as the one in which we live, has significant variables.
The M6.5 flare on the morning of April 11, 2013, was also associated with an Earth-directed coronal mass ejection (CME), another solar phenomenon that can send billions of tons of solar particles into space and can reach Earth one to three days later.
By understanding the nature of the gases, we can learn something about how small particles interact with each other, coagulate to become larger particles and then ultimately form planets
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...
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...
Hannes Olof GÃ¶sta AlfvÃ©n (May 30, 1908 - April 2, 1995) was a Swedish plasma physicist born in NorrkÃ¶ping, Sweden. AlfvÃ©n received his PhD from the University of Uppsala in 1934. His thesis was titled "Investigations of the Ultra-short Electromagnetic Waves." He was originally trained as an electrical power engineer and later moved on to research and teaching in the fields of plasma physics. AlfvÃ©n made many contributions to plasma physics, including theories describing the...
Ring Current -- A ring current is an electric current carried by charged particles trapped in a planet's magnetosphere. It is caused by the longitudinal drift of energetic (10-200 keV) particles. Earth's Ring Current Earth's ring current is responsible for geomagnetic storms. The ring current system consists of a band, at a distance of 3-5 RE(1), which lies in the equatorial plane and circulates clockwise around the Earth (when viewed from the north). The particles of this region...
- An uxorious, effeminate, or spiritless man.
- A timorous, cowardly fellow.