On Nov 2, 3:06*am, Jan Panteltje wrote:
On a sunny day (Tue, 1 Nov 2011 11:58:54 -0700 (PDT)) it happened Brad Guth
wrote in
:

We do seem to have a fly-by-rocket lander gap, including the one of
our Apollo era that doesn't seem to work as we've been told. *No doubt
those Long March landers will come in real handy, and we can rent them
for a million dollars per hour or per kg of payload (plus the usual
tax, insurance and fuel).

Btw, even 0.1 G worth of constant acceleration/deceleration is going
to make at least those most nearby exoplanets doable. *Fusion rockets
such as those offered by William Mook should more than do the trick.

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I was thinking that if all those flights to the International Space Junk Station
had been used to build a huge nuclear powered interplanetary spacecraft.....
then we would not have to burn it up in the atmosphere and endanger humanity
with the debris, but could fly to the planets with a travel time of only weeks.

Actually, using lithium-6 and deuteride is even better, at least
according to William Mook.

In the meantime, having a Boeing OASIS at the Earth-moon L1 would have
helped as of decades ago, such as for it inventory of conventional LOx/
LH2 and always HTP plus a good hydrocarbon synfuel, would have at
least made our solar system and especially our moon and Venus
commercially and even privately accessible.

"Lithium-6 deuteride produces alpha particles moving at 33000 km/
sec" / William Mook

However, my Radon alpha Ion thruster with its potential of 150,000 km/
sec might be even better since the necessary Radium that's producing
Radon has such a long half life. There should be lots of Radium in
our moon and especially on Venus.

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