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NASA Sees A Coronal Mass Ejection Erupt From the Sun

  • Written by Press Release
  • Category: Space
Coronal mass ejection
The Solar and Heliospheric Observatory (SOHO) captured these image of a coronal mass ejection, erupting on the left side of the sun early in the morning of Jan 31, 2013, as it was moving away from the sun into space. These images from SOHO are called coronagraphs, in which the bright light of the sun is blocked in order to make the dimmer structures in the sun's atmosphere, or corona, visible. (Credit: ESA&NASA/SOHO)

NASA/Goddard Space Flight Center-(ENEWSPF)- On Jan. 31, 2013 at 2:09am EST, the sun erupted with an Earth-directed coronal mass ejection or CME. Experimental NASA research models, based on observations from the Solar Terrestrial Relations Observatory (STEREO) and ESA/NASA's Solar and Heliospheric Observatory, show that the CME left the sun at speeds of around 575 miles per second, which is a fairly typical speed for CMEs. Historically, CMEs at this speed are mild.

Not to be confused with a solar flare, a CME is a solar phenomenon that can send solar particles into space and reach Earth one to three days later.

Earth-directed CMEs can cause a space weather phenomenon called a geomagnetic storm, which occurs when they connect with the outside of the Earth's magnetic envelope, the magnetosphere, for an extended period of time. In the past, CME's such as this have caused auroras near the poles but didn't disrupt electrical systems on Earth or interfere with GPS or satellite-based communications systems.

NOAA's Space Weather Prediction Center is the United States Government official source for space weather forecasts, alerts, watches and warnings.

Updates will be provided if needed.

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