What could this be ?

[AE-NMidlands]

I heard one brief passing comment about the fact that we ignore the environmental effects... the cloud was the result of venting unused kerosine* fuel into the cold of the upper atmosphere where it disperses into a cloud and freezes immediately.
* from https://en.wikipedia.org/wiki/SpaceX_rocket_engines

[Moxi]

I wonder why they dont just burn the engines at lower power for longer to have a slower return to the tower ? The final rapid deceleration they currently use must stress the fabric and components more than a slower longer deceleration ?

Then having said that which is the greater environmental impact - unburnt Kerosine in the upper atmosphere or combustion products in the lower atmosphere ?

Moxi

[nowty]

Was even seen in Hull last night, but Moxi's pics are better.
https://www.independent.co.uk/tv/news/s ... 20938.html

[dan_b]

https://www.bbc.co.uk/news/articles/c241073v66jo