Not necessarily news.
Scientific information yes, but big news; I doubt it.
Was it big news when the US and Russia exploded nuclear devices very high in the upper atmosphere and the radioactive fallout spread all over the planet?
I suspect that the radioactive elements are still floating around there, causing the upper air actually to glow.
Nuclear explosion in space:
Air glow:
http://www.atoptics.co.uk/highsky/airglow2.htm
Some of it is caused by natural processes, such as the sun’s energy and cosmic rays, but some may be from ionising radiation from nuclear disintegrations.
http://www.torontosun.com/2012/12/06/black-marble-view-of-earth-at-night-captured
“Some VIIRS images have surprised scientists. The sensor, for example, captured light from the upper atmosphere illuminating clouds and ice in visible wavelengths - by night.”