How many Tesla miles does it take to offset the carbon from one Space X launch?
Answer: who cares?
How much carbon would be offset if there were no Tesla's.
How much carbon does SpaceX offset compared to other launches? Especially after they get reusable rocket ready.
And most importantly why does it matter? Effect of that is tiny in global scale, and we need space techs. Weather, communications, GPS and so on. Eventually something to divert that big rock that will be coming to us from its track. That's the only "end of the world" scenario with "when" instead of "if".
Depends on the source of the electricity.
I'll note here that Musk intends to switch to liquid methane from kerosene at some point. Methane can easily be obtained from water, CO2, and electricity. If the electricity is from solar, the rocket would be in effect solar powered. This is the goal.
The same could be said of hydrogen, but hydrogen requires far colder temperatures, close to absolute zero, and is thus much more difficult (read expensive) to handle than methane. Methane has a slightly higher boiling point than Oxygen, so anybody who regularly handles one should be able to manage the other.
Still, kerosene is obviously easier to handle since it requires no cooling at all, and so they started with that to keep things simple and because it is a commonly used fuel available in rocket grade with existing infrastructure at launch sites.
Timo, the effect won't be so tiny if Musk gets to the point where they are launching rockets by the thousands in order to move tens of thousands of people to Mars. Hence, methane.
Depending on who is on the Rockets I would donate to that project. I would donate to send Reid and Pelosi on the first trip, they would be right at home on Mars.
Don't blame me for getting political, Daniel set that up making it hard to resist.
Anyway one rocket is all that would be needed to send millions. By the time we want to go to Mars we will be able to send a DNA sample and memory disk to be reconstituted on MARs. NSA already has all your data so the memory disk part will be easy.
@Roamer - I saw absolutely nothing political in those posts.
My intent was to mock the entire thread as silly.
And when he talked about sending people to Mars the first thought that comes to my mind is who would I like to see sent to Mars. I thought my candidates for the first trip would fit right in on Mars.
I don't see anything silly about sending people to Mars. As such I fail to see your joke as humorous one.
"To the Moon, Alice!"
The thousands of rockets and tens of thousands of people part cracked me up.
I think Fermi nailed it. We may make it to Mars but will destroy ourselves or nature will destroy us before we get much further. Socialism is already killing off innovation and social advance as the productive stop producing productive people and the unproductive produce like crazy. We will eventually destroy what we have created. Jared Diamonds book collapse is a fascinating study in why societies fail.
Here is Fermi's paradox.
I still vote for Pelosi on the first trip, provided no microphones or TV cameras are allowed. she is already L2 (permanently in space) so getting her to Mars would be Carbon Neutral......
I agree that Enrico Fermi “nailed it” by asking a great question, “Where are they?” and then quickly calculating that we should of been visited by ET many times over in the past. However you positing the Great Filter as the solution to the paradox is attributed to Robin Hanson and not Fermi. Moreover, Fermi is said to have been a firm believer in the existence of ETs.
Finally, as the Wiki points out, there are many other possible solutions to the paradox that do not involve our destruction.
Roamed, Jared Diamond's book on how societies choose to fail or succeed, ( COLLAPSE ) is a necessary read. Thank you for bringing it up.
Heard of the Asimov-Pellegrino Rules for Alien Contact?
Summary: there could be a predator species detemined to eliminate all real or potential competition. Other species know this, and just in case you're one are obliged to destroy you as soon as they find you. Knowing every responsible species must do this makes the impulse universal.
The favored method is autonomous factories in close solar orbit, that send off antimatter missiles at about .92 C to any likely life candidate. They breach the crust and knock life back to the bacterial level, providing a billion years or two of peace.
If you detect a gamma wake from incoming, you have about 1/12 that time to bend over and kiss your bippy good-bye.
The only survival strategy is to sneak off to an unlikely-looking star, dig in deep on a planet, and stay vewwwy qwiet, as Elmer would say.
↑See 'Flying to Valhalla', Pellegrino.
@Roamer; The thousands of rockets and tens of thousands of people part cracked me up.
Why? It isn't much. We fly many more people every day in jets around the globe. This would not be much different to that once reusable rocket tech is finished and we have interplanetary ship in orbit, only destination is a bit further away.
And what does Fermi do in any of this? We are not contacting aliens, we as just moving people between planets in our solarsystem.
Doncha know? Aliens are using or did use Mars as a way station. <(:p
It's so much more helpful to be part of somebody else's food chain.
The Earth has over a million particularly bright people. Surely we can spare some for Mars - and send the people we most want to avoid to a different planet. :)
To the OP… Elon has noted the irony himself many times, that a rocket is about the only form of transport that can't be switched to electricity. I guess we'll need a space elevator to improve things.