I am building a laboratory scale thruster which uses mono propellants and is thermally ignited, I am not getting much information related monoprop that...

Is it not cheaper to launch 24 eqi-spaced, chain Low Earth Orbit satellites having 1 hour visibility each ( adequate beam-width ) by using a smaller rockets,...

A first step towards building a fully reusable rocket would be to have a reusable first stage. You would want to minimize maintenance cost on that first...

Once a rocket or is in space (e.g. on its way to mars), how does it know where it is in relation to its pre-programmed route? There is no GPS in space.

So can anyone shed some light on the technology SpaceX is proposing to employ for Falcon booster recovery? Let's assume they are bringing down the entire 1st...

We've seen spacecraft for many uses shrink considerably, to the point where 1-kg CubeSats can do useful science. The military, through the TacSat and ORS...

I am trying to build a laboratory scale thruster which uses mono propellants and is thermally ignited.Although i got few papers on net but none of them were of...

In sci.space.tech message ec783d1a-5c21-48a7-8d0c-835899712e00@v19g2000 yqa.googlegroups.com, Tue, 16 Nov 2010 23:00:38,...

I have been recomended the book "Rocket Propulsion Elements" by Bruce Sutton" by the poster Damon Hill, and it is now on order from Amazon. I noticed a few...

Let's assume a new program for lunar missions is started. Let's also assume it is posited as Bush had did it, saying we are going to the Moon, and should go to...

Christopher wrote in : Could one of you please check...

Thanks for the rotor answers, appreciated. Here's another handful questions for you all. I've been reading articles on the web about the new liquid...

Hi all, just popped in to this group, as I've heard its a good place for space questions answers. My question is this: You have a rotor 200 meters in...

I'm not sure if this should be in sci.space.science or here. Its a little about comets and asteroids structure and a little about technology. Anyway here it...

As hydrogen peroxide has been demonstrated to be a useful oxidizer (Black Arrow, UK) with some nasty handling issues it occured to me if the latter could be...

MODERATOR'S COMMENT: Approving, but I believe you're confusing the Martian Year with the Ma rtian Sol(which is a little over 39 minutes longer than an...

I would like to have your thoughts about the best architecture for high rate lunar missions. I don't want to hear about new technology, if you want to talk...

http://news.discovery.com/space/robot-satellite-repair-nasa.html

Hi all, First of all, a little presentation: I'm an Italian communication engineer working in the field of satellite system design for purposes of EO. Because...

About fifteen years ago, I read an article that suggested one CPU error per 1000 hours of computation. Nowadays CPUs are faster, but they...