@CounsellorTroi
Space rockets are powered by liquid oxygen and hydrogen, still a waste of those though for something essentially a joyride.
This is really interesting and I had a look due to this post- but not really aimed at Councillor Troi

in particular!
I was hmm about it so googled.
For the recent bezos one.
Google has this fuel on more detailed sites-
- The Blue Engine 4 or BE-4 is an oxygen-rich liquefied-natural-gas-fueled staged-combustion rocket engine.
And in press generally this
-Blue Origin’s rockets are powered by a mix of liquid hydrogen and liquid oxygen. The propellants are much cleaner than conventional rocket fuel.
I think- but please say if you know better!
That it seems there is some sleight of hand here?
In that
The actual chemical reaction that provides the energy is hydrogen oxyge.
BUT the hydrogen is from natural gas IE fossil fuel, extraction, pollution related to extraction etc etc.
The emissions are on the things I looked at. Lower than traditional means of propulsion. But that's not the same as... Clean and totally harmless.
I also disagree with the. Great for exploration etc.
This to me is a handful of blokes indulging in the billionaires version of mine's bigger/ faster/ better than yours.
Exploration has not stopped. Hubble is still out there. Recent missions from a variety of countries over the years have launched variety of tech. Some to go far through solar system send back info about planets further out. Some launching probes/ mobile exploration units into surfaces with capability to take samples. The vast radio telescopes have been working all through.
Bopping up into edge of earth Atmos, ooh weightless, back again. Yes I'd love to do it. But I can't see the exploration element.
When it comes to advances the fact that more mainstream tech is sometimes good enough to use, reducing costs etc. Is amazing. Eg a case camera linked to a raspberry pi! Iirc.
(More info on impact of the products of the propulsion method here-
www.theguardian.com/science/2021/jul/19/billionaires-space-tourism-environment-emissions)