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DanFlashesSales t1_je6vtrg wrote

Reply to comment by TheBigNook in As an avid lover of the cosmos, is it realistic to expect space tourism and a mars and moon resort before I die? by EarthInteresting9781

I'm not sure that hydrogen or methane powered engines produce very much soot at all.

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TheBigNook t1_je77pl3 wrote

They absolutely do produce soot, and the production of hydrogen is horrible for the environment as well.

Methane is not so bad. Still produces soot but not nearly as bad.

Space X uses kerosene and liquid oxygen.

Virgin galactic uses HTPB and liquid nitrous oxide

Blue origin uses liquefied natural gas.

I do hope for alternatives for commercial use but am also very hesitant to support en made space tourism at the moment.

But you’re correct in that hydrogen and methane are cleaner that what is used now

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DanFlashesSales t1_je7b62y wrote

>They absolutely do produce soot

How? Hydrogen and Oxygen yield water. Where does the soot come from?

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