Dear All, I would like some advice and comments please on the feasibility to mine comets in-flight on a hypothetical futuristic spaceflight mission towards...

All I could find on Google are countless links which give inclination of eclipses related to Earth equator, or inclination of Earth axis related to...

Hypothetically... You've captured your stony-iron asteroid and parked it at the Earth-moon L4 point. You've got mines and smelters producing tens of megatons...

I am trying to understand some of the loss mechanisms in a modern rocket engine. In a staged combustion cycle rocket engine, there are losses in the turbine...

Why can't you launch a fuel tank into orbit with solid fuel boosters that the shuttle or other transport could dock with? What about to moon orbit?. If you...

There's an interesting (and long) thread over on the Space.com forums about the possibility of redesigning a reusable Gemini-style capsule with modern (mostly...

I was wondering what communications protocols have been used in the past with probes traveling beyond the earth-moon system? I've read that G-tor was used for...

I was thinking recently what would be requirements of an ideal interplanetary spacecraft capable of carrying humans around the solar system within reasonable...

There is plenty of software available for visualizing and calculating satellite orbits around the Earth, but I can't seem to find any software for calculation...

Hi sps! Does anyone know about how long transit times in the ITN are and how often there are launch windows? I guess the launch windows are at least one...

When Pioneer 10 eventually passes Aldebaran - projected to be in around 2 million years time (!), do we know how "close" the flyby is likely to be...not that...

Some months ago I reconsidered an old idea of mine about a different way to go to space. I still believe it might work. But feel free to tell me why you reckon...

My name is Richard Butler. I have a background in physical chemistry and mechanical engineering. I am seeking a company or investor for orignal and patentable...

So, from deep within the peanut gallery come a couple questions/comments and such that will perhaps sound absurd but if nothing else I suspect the responses it...

Could anyone point me to some technical documentation on Ion Drive systems? One thing I'm interested to know is why don't the ion's stick the grid they are...

http://www.isas.ac.jp/e/new/release/2003/07_02.html Ion Engine Operation of Hayabusa ISAS July 25, 2003 Launched on May 9, 2003, the asteroid explorer...

MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109...

Recently there have been announcements about new and improved ion thrusters. One of them was the Helicon Double Layer Ion Thruster, and the latest one is the...

I was reading about these electric "lifters" which generate lift using "ion wind", and came across this old article about the Ionocraft, which was to use this...

I have this idea for an orbital rocket fuel refueling station; has this idea been studied already? The refueling station is a solar powered satellite...