> Sorry, but isn't that completely impossible!?? > Not just for the required fuel and environmental impact, but also given how often they just postpone basic l

> Sorry, but isn't that completely impossible!?? > Not just for the required fuel and environmental impact, but also given how often they just postpone basic launches due to weather. The environmental impact of a rocket launch is roughly in the same category of the environmental impact of a airliner doing a single long-distance trip. (I did this calculation for F9, SS/SH would be higher but not more than two orders of magnitude higher.) Pre-covid, there were approximately 100 000 airliner flights a day. You do the math. And that's before we consider that they are fueled with methane, and that there are sources of methane that are potentially not just GHG-neutral, but GHG-negative. (Collecting agricultural methane emissions and burning them is dramatically better than releasing them directly.) As for weather, it is possible to launch rockets in very bad weather, for example the Russians frequently launch in literal blizzards where no winged aircraft could fly. It's just that ability to fly in inclement weather is something you need to design for -- rocket bodies are generally not strong against transverse loads, and this is made worse by having a high fineness ratio. SS/SH, being much more stubby than most current American rockets, will be much less impacted by weather than them.