this post was submitted on 16 Jan 2025
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Summary

The moon has been added to the World Monuments Fund's (WMF) list of threatened heritage sites for the first time due to risks from commercial and governmental lunar activities.

The WMF highlights concerns about looting and damage to artefacts from Apollo missions, such as Neil Armstrong’s footprints and objects left on the moon.

WMF calls for international protocols to protect lunar heritage as private space tourism and missions increase.

The 2024 list also includes sites in conflict zones and areas endangered by climate change or unsustainable tourism.

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[–] [email protected] -1 points 4 hours ago

Engines in space don't produce visible smoke because A) they are precision engineered to burn 100% of the fuel they are supplied with, and what is colloquially known as smoke is unburned particles. All this awesome smoke that engulfs rockets before they take off? Most of it is vapour from water under the platform, protecting the structure from melting. B) Thrusters in general are build to expel the reaction mass as fast as possible in order to go as fast as possible with the least amount of fuel.

So yeah, you are trying to compare what happens in a cars' engine with what's going on in the exhaust: It's the same stuff but under very different circumstances.