On Jul 27, 7:04 pm, byblow wrote: A friend of mine who's a physicist says water in a container (a tank or bladder) takes a long time...

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...

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...

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...

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,...

....is being tested by NASA. Does anyone know any details of the engine, like fuel, oxidizer, expected thrust?

(Sorry, am no longer visiting here so no point replying here. Ignore this post.) Hi, first post on this forum (and I barely know what usenet is :p ) This...

So a lot of movies, TV shows, illustrations, etc., show spacecraft generating "gravity" via rotating hull sections. In many cases, this rotating section spins...

Where can I get a list of the Shuttle's system checklist that the crew run down, on the radio, right before launch? TIA.

In article 80d64180-bb17-4eb8-a5d5-f1428de554b0 @t9g2000vbs.googlegroups.com, says... A friend of mine who's a physicist says...

I would love to hear opinions about Elon Musk's announcement a fully reusable, two-stage launcher. In this SpaceX animated video...

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...

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...

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

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...

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...

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...

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...

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

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...