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Timeline for Why can't we launch from space?

Current License: CC BY-SA 3.0

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Mar 10, 2023 at 22:46 comment added Starship because how do you plan on getting the parts there. by launching form earth. so you have solved nothing @bobthebuilder
Jan 7, 2020 at 20:26 comment added Chris B. Behrens I can't help but contrast the utter lack of gatekeeping (in a positive way) going on here with some of the other exchanges. It makes me proud of this little community...
Jan 7, 2020 at 14:26 answer added Uwe timeline score: 0
Jan 7, 2020 at 12:29 answer added user21103 timeline score: 0
May 29, 2015 at 5:54 answer added wallyk timeline score: 7
May 27, 2015 at 20:22 history tweeted twitter.com/#!/StackSpaceExp/status/603657613641949185
May 27, 2015 at 13:56 comment added mgarciaisaia +1 for a nice question, +1000 for being curious and trying to learn about this - I hope I had StackExchange before growing into frustration.
May 27, 2015 at 13:30 comment added Qwerky @bobthebuilder Play some Kerbal Space Program and you will learn a lot about orbital mechanics.
May 27, 2015 at 10:45 comment added Lilienthal @Antzi One possible scenario is if the assembled craft is too large or heavy to be launched from earth. The mass drivers and space guns that TildalWave mentions may in future be an option to affordably launch raw materials that can survive the journey that components can't, but that would involve full-blown space manufacturing rather than just assembly.
May 27, 2015 at 8:33 comment added LocalFluff Launching "from" (in) space is happening, and it is revolutionizing space exploration! If you google "ion thruster" you'll find that for example the probe Dawn now at Ceres has accelerated in total by more than 10 km/s using less than 80 kg propellant, which is as much push as the 200 ton heavy Delta II launcher rocket gave it. Ion thrusters have 10 times faster exhaust velocity compared to chemical rockets. Achieving 10 times higher speed with chemical rockets would require e^10=22000 times more fuel per kg payload, 22,000 Delta II launches. There's no known way to go slowly to orbit, though.
May 27, 2015 at 6:11 history edited TildalWave
No part of the question is specific to SpaceX, so I edited to add more relevant tags
May 27, 2015 at 5:59 answer added TildalWave timeline score: 24
May 27, 2015 at 4:47 comment added Antzi What makes you think we would spend less by moving each component of the rocket to the ISS and then assembling/launching it than just launching from earth a pre assembled rocket ?
May 27, 2015 at 3:55 review First posts
May 27, 2015 at 4:47
May 27, 2015 at 3:55 history asked bobthebuilder CC BY-SA 3.0