Latest Coronal mass ejection Stories
An unusual comet was spotted by the NASA/ESA Solar and Heliospheric Observatory (SOHO) as it travelled near the sun late last week, and unlike most other comets that make such a voyage, this one actually lived to tell the tale.
The British Geological Society issued a geomagnetic alert regarding incoming atmospheric disturbances resulting from recent Coronal Mass Ejections from the sun, projected to arrive at Earth on
Understanding vast systems in space requires understanding what's happening on widely different scales. Giant events can turn out to have tiny drivers -- take, for example, what rocked near-Earth space in October 2003.
An area of intense and complex magnetic fields known as an active region rotated into view on October 18, growing into the largest phenomenon of its kind in more than two decades and producing 10 significant solar flares.
Those who study Earth's weather have a luxury of data points to study. Compared to this, the study of space weather – including CMEs – is a much younger science, with far fewer observatories available.
On July 23, 2012, a massive cloud of solar material erupted off the sun's right side, zooming out into space. It soon passed one of NASA's Solar Terrestrial Relations Observatory, or STEREO, spacecraft, which clocked the CME as traveling between 1,800 and 2,200 miles per second as it left the sun.
Looking across the Mars landscape presents a bleak image: a barren, dry rocky view as far as the eye can see. But scientists think the vista might once have been quite different. It may have teemed with water and even been hospitable to microbial life. What changed?
There are many kinds of eruptions on the sun. Solar flares and coronal mass ejections both involve gigantic explosions of energy, but are otherwise quite different.
- Withering but not falling off, as a blossom that persists on a twig after flowering.