STEREO - Solar Terrestrial Relations Observatory
[Home] [Contact] [Site Map]


Important notice about the deactivation of the STEREO ftp server

Important notice about the STEREO redirects

Important notice about STEREO Behind

Bursts of Activity

image130

The STEREO Ahead spacecraft was watching when several events occurred in just two days (Aug. 1-2, 2010). First, a flare and a coronal mass (CME) ejection blasted out early on Aug. 1, that sudden burst in the video clip that shot straight out to the left. Not long after that two prominences (darker strands of cooler gases above the Sun's surface) lifted up and broke away from the Sun, one after the other. These eruptions were likely triggered by the C-class flare (relatively minor) and CME. The solar movie shows the event in extreme ultraviolet light. The CME cloud of particles headed in Earth's direction and sparked widespread aurora on Aug. 3-4. You can see a video clip of the front of the CME cloud heading towards Earth (Aug. 1-3, 2010) taken by STEREO's HI2 instrument.


Last Revised: October 03, 2023 17:04:35 UTC
Responsible NASA Official:
Privacy Policy and Important Notices
Webmaster: Apexa Patel