Stratosphere
Ozone layer declining over populated zones: study
Two possible suspects for this worrying trend stand out, the study concluded.
Ozone layer declining over populated zones, says study
Ozone in the lower stratosphere is slowly disintegrating, an international team of two dozen researchers warned.
First test flight of stratospheric solar plane
Pilot Damian Hischier took the craft for a seven-minute test flight, reaching an altitude of 300 metres (nearly 1,000 feet)
NASA delays super pressure balloon launch due to bad weather
This was the third scheduled launch attempt for NASA's 2017 Wanaka Balloon Campaign from New Zealand.
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