National Aeronautics and Space Administration Logo
Follow this link to skip to the main content NASA Banner
Solar System Exploration
Multimedia
Pulses from the Sun
Pulses from the Sun (click to enlarge)
 
 

Pulses from the Sun
Date: 28 Mar 2013

The dark region seen on the face of the sun at the end of March 2013 is a coronal hole (just above and to the right of the middle of the picture), which is a source of fast solar wind leaving the sun. As it traveled through the solar system, this high-speed stream of plasma pushed up against slower solar wind ahead of it, and eventually formed a high-pressure region. This high-pressure region crashed into Saturn's magnetic bubble several weeks later in May 2013, causing bright auroral displays.

This image was obtained by the atmospheric imaging assembly on NASA's Solar Dynamic Observatory on 28 March 2013.

Credit: NASA/SDO/AIA



Awards and Recognition   Solar System Exploration Roadmap   Contact Us   Site Map   Print This Page
NASA Official: Kristen Erickson
Advisory: Dr. James Green, Director of Planetary Science
Outreach Manager: Alice Wessen
Curator/Editor: Phil Davis
Science Writer: Autumn Burdick
Producer: Greg Baerg
Webmaster: David Martin
> NASA Science Mission Directorate
> Budgets, Strategic Plans and Accountability Reports
> Equal Employment Opportunity Data
   Posted Pursuant to the No Fear Act
> Information-Dissemination Policies and Inventories
> Freedom of Information Act
> Privacy Policy & Important Notices
> Inspector General Hotline
> Office of the Inspector General
> NASA Communications Policy
> USA.gov
> ExpectMore.gov
> NASA Advisory Council
> Open Government at NASA
Last Updated: 11 Feb 2014