ScienCentral News
 
environment general science genetics health and medicine space technology May 25, 2003 
home NOVA News Minutes archive login

is a production of
ScienCentral, Inc.
Making Sense of Science

Other Images
Protein Ribbon

Io at Sunset

London from the ISS

The Shadow of Phobos

Apollo 12: Self-Portrait

Visit the Image of the Week Archive
NOVA News Minutes
Visit the NOVA News Minutes archive.
ScienCentral News and Nature
Nature genome promo logo
Don’t miss Enter the Genome
our collaboration with Nature.
Best of the Web!
Popular Science Best of the Web 2000
Selected one of Popular Science’s 50 Best of the Web.
Get Email Updates
Write to us and we will send you an email when a new feature appears on the site.
Cannibalistic coronal mass ejection
April 02, 2001
courtesy NASA

Movie is 2 MB large. Requires the free QuickTime plug-in.

Fast-moving solar eruptions apparently overtake and often devour their slower kin. NASA astronomers heard strange radio fireworks using NASA’s Wind spacecraft, and later linked the timing of these radio outbursts to images of solar eruptions consuming each other captured by the Solar and Heliospheric Observatory (SOHO) spacecraft. The movie above is an artist’s conception of the phenomenon, called a cannibalistic coronal mass ejection.

Solar eruptions directed toward Earth are potentially harmful to advanced technology, including communications and power systems, and this cannibalistic behavior may result in longer magnetic storms. These collisions change the speed of the eruption, which is important for space weather prediction because it alters estimated arrival time of Earthbound coronal ejections.






About Search Login Help Webmaster
ScienCentral News is a production of ScienCentral, Inc.
in collaboration with the Center for Science and the Media.
248 West 35th St., 17th Fl., NY, NY 10001 USA (212) 244-9577.
The contents of these WWW sites © ScienCentral, 2000-2003. All rights reserved.
The views expressed in this website are not necessarily those of the NSF.
NOVA News Minutes and NOVA are registered trademarks of WGBH Educational Foundation and are being used under license.