Description:
Technical and general issues related to space flight. (Moderated)
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25 years in space?
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I hope this question is not too far afield (or too morbid), but does
anyone know what would happen to a dead body after 25 years of drifting
in space inside a spaceship? I am writing a story that includes the
possibility of a astronaut dying while on a mission and his spaceship
drifting for 25 years before it is found. I would appreciate any... more »
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Helium-3 crisis today could finance lunar elevator
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Helium-3 is abundant on the Moon but very rare on Earth
There is a critical shortage of He3 today, due to two factors:
1) increasing demand for neutrons detectors since 2001 for cargo
screening at airport and seaports. There is also increasing demand at
research facilities.
2) reduced supply due to decommissioning of nuclear warheads in USA and... more »
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Interplanetary Transport Network transit times
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Hi sps!
Does anyone know about how long transit times in the ITN [1] are and how
often there are launch windows? I guess the launch windows are at least
one between 2 oppositions of the start and destination bodies.
Specifically, how long are travel times from Earth to Mars, asteroid
belt, Jupiter and moon (and vice versa).... more »
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Airlock substitute
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Hi,
I was wondering if we can use plasma shields like "plasma window" or
force fields instead of airlocks to let the astronaut get through them
without letting air to go out.Although can we use magnetic fields to
draw back some of lost air?
-- Armin
============================== ========= MODERATOR'S COMMENT:... more »
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Blue Origins BE-3 Engine
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...is being tested by NASA. Does anyone know any details of the
engine, like fuel, oxidizer, expected thrust?
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Rocket Plane in Level Flight?
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Would it be possible to design something like the XCOR Lynx for level flight, with a rocket but still have a useable range?
Let's say a normal cruise speed, size and passenger capacity competitive with a Lear Jet 23, or a Cirrus Vision.
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msl sky crane?
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Hi,
I've been searching for video's and information on testing of the msl
sky crane system.
Apparently I've been looking in all the wrong places because I have
found nothing but nice pictures about how it should work on mars.
Turning to the wisdom of the group here.
Have test articles been built and tested?... more »
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rocket engine efficiency
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why are rockets burning most of their fuel outside the engine
============================== ========= MODERATOR'S COMMENT: Not sure the evidence for this, but it's technical, so will permit so the question can get answered.
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