NASA launches IRIS telescope to observe sun's layers

06/26/2013 | New Scientist

NASA will launch a telescope, the Interface Region Imaging Spectrograph, today to observe and investigate the chromosphere of the sun, a region between the surface and the plasma layer that surrounds it. NASA hopes to find the reason why the sun's surface is so much cooler than the corona plasma layer. "IRIS will fill crucial gaps in our understanding of what role the interface region plays in powering the corona," said Jeffrey Newmark, IRIS mission scientist.

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