Bob Robinson , a space scientist at NASA Goddard and Catholic University, was quoted in a ScienceDaily on the Earth's ionosphere. The research was also mentioned in The Science Explorer, SUV Systems Ltd., and Health Medicine Network. See below.
From: ScienceDaily Date: Dec. 14, 2016
Summary:Far above Earth's surface is a sea of particles that have been split into positive and negative ions by the suns harsh ultraviolet radiation called the ionosphere -- this is Earth's interface to space.