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

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...

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...

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

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...

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...

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...

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.

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...

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,...

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

This is something that has not been covered by news nor (as near as I can tell) has it been the subject of a press release. But it is fairly well known to...

About Skylon and laser propulsion to get the cost to GEO down. http://www.theoildrum.com/node/7898 Keith Henson

My friend's friend is one of those people who think that we never landed on moon and his reasoning is that the ascent stage of Apollo Lunar Module did not have...

The Australian Government has, for reasons that have much to do with politics, and little to do with the environment, decided to throw $Au 10 billion into...

Robert Zubrin researched the idea of using large electro-magnetic fields to produce drag against the sparse interstellar medium. Found it would be a feasible...

I am using Nasa CEA code for calculating Isp for different Ae/At ratios with chamber pressure of 1000 psi. Problem is Isp should have a peak at optimum...

In article , says... On 24/03/2011 8:18 AM, Jeff Findley wrote:

What equipment, materials and amount of electricity are needed to produce steel (in space) from ores found on NEOs? Would there be a need to add carbon (as a...

I need something that’s completely automated and can extract 100 tonnes of water per day from steam (does 100 tonnes of steam = 100 tonnes of water?). This...