Have we launched interplanetary ships w/ turnaround yet? Or are they all still running on ballistics w/ adjustment, insertion, & splashdown?
2:14am Apr 2nd 2012 via web
@sevensixfive nope, no turnaround, too much fuel required.
2:57am Apr 2nd 2012 via Twitter for iPad in reply to sevensixfive
@kazys: right? Using gravity slingshots instead.
2:59am Apr 2nd 2012 via web in reply to kazys
@sevensixfive check out the trajectory if mercury messenger.
3:00am Apr 2nd 2012 via Twitter for iPad in reply to sevensixfive
@sevensixfive @kazys I forget the exact maths but deceleration mass carries something like a fourth power penalty- you accelerate it twice.
6:16am Apr 2nd 2012 via Tweetbot for iOS in reply to sevensixfive
@paulmison @kazys no easy answers in space travel.
2:08pm Apr 2nd 2012 via web in reply to paulmison
@paulmison @kazys: @cstross has an excellent breakdown on related topics here: antipope.org/charlie/blog-s…
2:10pm Apr 2nd 2012 via web in reply to paulmison
@sevensixfive @paulmison I think Hayebusa may be an exception, if you call a visit to an asteroid interplanetary. en.wikipedia.org/wiki/Hayabusa#…
2:35pm Apr 2nd 2012 via Twitter for iPad in reply to sevensixfive
Earth and Moon as seen from 183 mil. km by Mercury Messenger: upload.wikimedia.org/wikipedia/comm… (indirectly via @kazys)
3:13am Apr 2nd 2012 via web
3:14am Apr 2nd 2012 via Twitter for iPad in reply to sevensixfive
@kazys: Those stars! And what are the moving objects in the upper right?
3:15am Apr 2nd 2012 via web in reply to kazys
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