|MadSci Network: Physics|
A trip to Mars takes 180 days (or so) to reach Mars' orbit. A window for the return will not open up for another 26 months, meaning that a round trip takes something like 3 years. How realistic (or not) is it to expect direct powered flight at speeds that are, say, an order of magnitude faster than orbital escape velocity? Reason: I am writing a "futuristic novel", not necessarily Sci-fi, that is set in mid-century (this one, that is). I am aiming for an authentic look and feel for the technology and the storyline.
Re: Why is interplanetary travel limited to ballistic trajectory flight?
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