Everyday Astronaut

@Erdayastronaut · Jan 30, 2020

I’ve ran those numbers! Starship E2E would need to launch 3,500 times a day to equal the CO2 output of the airline industry. BUT methane can be carbon neutral. BUT CO2 and Water Vapor in the upper atmosphere is bad. But say it’s 100x worse, thats still 35 launches per day.

Elon Musk

@elonmusk

Exactly. Mars propellant production will combine atmospheric CO2 & water (ice) to make CH4 (methane) & O2. Will do same on Earth long-term. Short-term, each Falcon flight uses roughly same fuel mass as a 747 flight. Falcon is ~71% oxygen & Starship is ~78%, so mostly not fuel.

11:00 PM · January 30, 2020 · 0 views

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