All satellite articles
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ResearchResearchers identify metals released into the atmosphere by satellite reentry
Metals including niobium and hafnium detected in stratospheric aerosols
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NewsEnvironmental concerns ground mercury-based satellite thrusters
UN takes steps to outlaw mercury propellant that could have seen tonnes of the heavy metal rain down on Earth every year
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BusinessMeasuring methane emissions is crucial to cutting them
Atmospheric monitoring highlights large under-estimates in reported methane emissions
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ResearchIodine ion drive propels satellite in space for the first time
Halogen could provide a cheaper, more efficient alternative to xenon
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ResearchSpectroscopy from space lets satellites spy out ocean plastic patches
The technique could show where and how floating plastic patches form, and raise awareness of plastic pollution in the oceans
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NewsBepiColombo satellites begin journey to Mercury
Mission hopes to shed some light on processes that may have shaped the early Earth
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ResearchOzone still declining in the lower stratosphere
The reason for the continuing drop in ozone levels is a mystery
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PodcastCadmium telluride
It may not be the best material for solar cells but it has some distinct advantages