Coronal Holes
Coronal holes are large regions in the corona that are less dense and cooler than surrounding areas. The open structure of their magnetic field allows a constant flow of high-density plasma to stream out of the holes. There is an increase in the intensity of the solar wind effects on Earth when a coronal hole faces us.
Coronal Holes in the News:
June 14, 2011: New
insights on how solar minimums affect Earth -- NASA January 11, 2011: Holes in the sun's corona -- NASA August 28, 2010: Hole in the sun -- APOD October 4, 2009: Streams of the Sun -- Astrobiology Magazine September 23, 2009: The Sun could be heading into period of extended calm -- Physics World December 15, 2008: SABER reveals the upper atmosphere's "breathing" pattern, in rhythm with the Sun -- NASA September 27, 2007: Hole in the Sun -- APOD February 19, 2007: Surprises from the Sun's south pole -- European Space Agency February 7, 2007: South pole flyby -- Science@NASA April 4, 2006: Coronal holes, jets, and the origin of 3He-rich solar energetic particle events -- ACE News April 22, 2005: Solar wind originates in coronal funnels -- Max Planck Society March 18, 2003: Coronal holes on the Sun -- NASA GSFC APOD January 30, 2003: Environmental satellite readied to detect solar storms -- NASA GSFC October 31, 2002: Spooky auroras light up autumn nights -- CNN.com February 7, 2002: Coronal hole -- NASA GSFC APOD October 16, 2001: Solar wind discoveries at solar maximum -- Spaceflight Now March 3, 2000: The Sun's show hots up -- BBC News March 2, 2000: Polar substorm -- NASA MSFC February 24, 2000: Leaky Sun threatens disruption -- BBC Click on images above to
learn more about them
A service of the Astrophysics
Science Division at NASA's GSFC
Questions and comments to: cosmicopia@cosmicra.gsfc.nasa.gov Curator: Beth Barbier, SP Systems Responsible NASA Official: Dr. Tycho von Rosenvinge Privacy Policy and Important Notices |
HOME In the News History Ask Us Great Links Glossary Site Map Search NASA |
This file was last modified:
July 27, 2011
|