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that may cause them to fail. Rather than risk posing a threat to other spacecraft, SpaceX will"de-orbit" these satellites to burn up in the atmosphere.Clearing debris is therefore a priority for the space sector. Newly launched spacecraft must also be removed from orbit within 25 years . In an uncontrolled re-entry, spacecraft are left to follow a"natural demise" and burn up in the atmosphere.
Initially, neither the space sector nor the astrophysics community considered burning up satellites on re-entry to be a serious environmental threat – to the atmosphere, at least.So are atmospheric climate scientists overreacting to the presence of spacecraft particles in the atmosphere? Their concerns draw on 40 years of research into the cause of the ozone holes above the south and north poles, that were first widely observed in the 1980s.or mother of pearl clouds.
Cirrus clouds are the thin, wispy ice clouds you might spot high in the sky, above six kilometres. They tend to let heat from the sun pass through but then trap it on the way out, so in theory more cirrus clouds could add extra global warming on top of what we are already seeing from greenhouse gases. But this is uncertain and
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