Quantcast

Latest Space weather Stories

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...

2013-07-11 16:18:48

On July 9, 2013, at 11:09 a.m. EDT, the sun erupted with an Earth-directed coronal mass ejection or CME, a solar phenomenon that can send billions of tons of particles into space that can reach Earth one to three days later. These particles cannot travel through the atmosphere to harm humans on Earth, but they can affect electronic systems in satellites and on the ground. Experimental NASA research models, based on observations from NASA’s Solar Terrestrial Relations...

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

Lee Rannals for redOrbit.com - Your Universe Online A solar tsunami has provided scientists with the first accurate estimates of the Sun's magnetic field. Researchers wrote in the journal Solar Physics that solar tsunamis are produced by enormous explosions in the Sun's atmosphere known as coronal mass ejections (CMEs). As these events move through space, the tsunami travels across the Sun at speeds of up to 621 miles per second. Solar tsunamis have a higher speed in regions where the...

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

Lee Rannals for redOrbit.com - Your Universe Online 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. The team found evidence magnetic waves in a polar coronal hole contain enough energy to heat the corona and deposit most of their energy at sufficiently low heights for the heat to spread throughout the corona. Their observations help answer a 60-year-old solar physics mystery...

CME Headed Toward Mercury And Venus
2013-07-02 16:01:43

NASA On July 1, 2013, at 6:09 p.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 NASA's Solar Terrestrial Relations Observatory show that the CME was not Earth-directed and it left the sun at around 570 miles per second. The CME may, however, pass by NASA's Messenger, Spitzer and STEREO-B satellites, and...

ESA Researchers Discover Solid Proof Of Plasmapheric Winds
2013-07-02 14:21:24

[WATCH VIDEO: Plasma Outflow From Plasmasphere To Magnetosphere] Lee Rannals for redOrbit.com - Your Universe Online A study published in the journal Annales Geophysicae provides the first conclusive proof of the existence of plasmaspheric wind. Researchers detected this plasmaspheric wind while analyzing data from the European Space Agency's (ESA) Cluster spacecraft. "After long scrutiny of the data, there it was, a slow but steady wind, releasing about [2.2 lbs] of plasma every...

New Program Aims To Understand Effects Of Space Weather
2013-07-01 19:10:36

Lee Rannals for redOrbit.com -- Your Universe Online Scientists are working on a program to better understand how national grids could be affected by space weather. British Geological Survey (BGS) researchers are conducting continuous measurements of the background electric field in the UK to better understand how the UK National Grid can be interrupted by the Sun. Space weather can take place when the ejection of material from the Sun, or coronal mass ejection (CME), shoots towards...

Solar Corona Captured In New Hi-C Images
2013-07-01 04:40:35

[ Watch the Video: Stunning New Solar Atmosphere Images Could Help Solve Longstanding Mysteries ] redOrbit Staff & Wire Reports - Your Universe Online Thanks to an innovative new camera on board a sounding rocket, an international team of scientists has managed to capture pictures of the sun's outer atmosphere that are five times sharper than any previous images. The images, which were scheduled to be presented by University of Central Lancashire professor Robert Walsh at the...


Word of the Day
drawcansir
  • A blustering, bullying fellow; a pot-valiant braggart; a bully.
This word is named for Draw-Can-Sir, a character in George Villiers' 17th century play The Rehearsal.
Related