24 marzo 2015
At any given moment, our sun emits a range of light waves far more expansive than what our eyes alone can see: from visible light to extreme ultraviolet to soft and hard X-rays. In 2012 and 2013, a detector was launched on a sounding rocket for a 15 minute trip to look at a range of sunlight previously not well-observed: soft X-rays.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/YhUP8jjpdyI/150324183630.htm
