By 
June 2nd, 2026
Incorporation of metals from space hardware re-entry into stratospheric particles.
Graphic: Chelsea Thompson, NOAA
BOULDER, Colorado – Increased attention is being given to the rising intrusion of exotic materials into Earth’s atmosphere from satellite and space hardware re-entry. Exasperating the situation is the ongoing proliferation of satellite “megaconstellations” being undertaken by multiple nations.
Atmospheric impacts of spacecraft launches and re-entries, what is known and unknown, along with research priorities was detailed at the 2026 European Geosciences Union held May 3-8 in Vienna, Austria.
Go to my new SpaceNews story – “Researchers call for regulations to protect low Earth orbit environment – Experts call for an end to an unsustainable ‘Wild West’ approach to space” – at:
https://spacenews.com/researchers-call-for-regulations-to-protect-low-earth-orbit-environment/
Posted in Space News
Earth’s atmosphere is 5.15 x 10^15 tonnes.
Launch last year was a bit over 3000 tonnes.
Allow for 50,000 tonnes. Over ten times current mass.
Not all of it burns up, for example Starship has tiles which are not ablative.
If 50,000 tonnes all burned up it would amount to one part in 100 billion.
This is somehow a problem?
Even if you just look at the atmosphere above 100,000 feet it is one part in a billion.