This four–hour event occurred from 10:20 am to 2:20 pm EST and was captured by NASA’s Solar Dynamics Observatory in extreme ultraviolet light shown here at a high cadence of an image every 36 seconds. Credit: NASA/SDO

A solar eruption gracefully rose up from the sun on December 31, 2012, twisting and turning. Magnetic forces drove the flow of plasma, but without sufficient force to overcome the sun’s gravity much of the plasma fell back into the sun.


The Earth is superimposed on this image to give readers a sense of the scale. The length of the eruption extends about 160,000 miles out from the Sun. With Earth about 7,900 miles in diameter, this relatively minor eruption is about 20 times the diameter of our planet. Credit: NASA/SDO/Steele Hill

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Posted by: Soderman/NLSI Staff
Source: NASA

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SSERVI Science Teams

  • Observations of the lunar impact plume from the LCROSS event

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    McMath‐Pierce telescope observed sodium (Na) emission from LCROSS impact on October 9, 2009.When the Lunar Crater Observing and Sensing Satellite (LCROSS) impacted Cabeus crater on October 9th, it pitched up frozen water along with some sodium, astronomers reported today.

    According to the LCROSS team, the impact event pitched up about 660 pounds of water frozen on the bottom of the crater. NLSI researcher R. M. Killen at NASA’s Goddard Spaceflight Center reported that the plume also contained about 3.3 pounds of sodium chloride.

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