Greetings to all, please have a look, if it interests you to take part in an experiment with Electric Thruster Ion Plasma Engine tests onboard the...

Hello All, I'm trying to spec out a capsule-based launch system for some stories I've been writing. One of my goals with this project is to be as technically...

Hello, is there someone who can give me a list of upper stage engines currently used in launch vehicles? Thank you very much, Rob

On Feb 25 2002 John Carmack started a thread by this name. Google won't let me reply to that thread so I am starting another by the same name. John...

Announcement, for your information, browse and act as you see fit. Sterling-Bond announced proposal for an independent commercial space venture. This UK...

Anyone know when the BBC will re-broadcast it's Learning Zone programme about Beagle 2. I saw most of it the first time round but didn't record the...

Funny thing is that Werner Von Brown was the one who proposed this ion engine more than 50 years ago. What was it with these Germans -- Einstein and Von Brown....

It looks like during the shuttle's early development that the excitement was on hydrogen/LOX, the 'ultimate' fuel combination for chemical...

1) I understand the speed required to gain orbit is most of the energy expended by a space craft, relatively little is used to actually gain altitude itself....

1) Cross-posts are limited to 3 newsgroups (and even then may be subject to review if the 2 other groups are non-topical to the post.) 2) I'm ironically...

The following image of Saturn was taken by Hubble telescope. http://139.134.5.123/tiddler2/c22508/storm.jpg By a software it was sharpened...

Hi, Crazy idea of me (again): ET/Shuttle derived heavy launcher have developpement costs associated with the modification of the external tank structure to...

There are reasons why it's advantageous to have a main lunar base at low latitude, and a water mining base at the poles. But how could cargo be transported...

Has anyone developed such a thing? I imagine if a broadband IR pass coating could be put on one side of some clear plastic, and a IR reflective coating on the...

I know that the plasma halo cause by atmospheric friction cuts out radio contact from a returning space craft i.e. the Shuttle, Apollo Comand module,...

Does anyone know where to find information about how this is calculated/estimated? I seem to rememeber TNT equivalent numbers given for Saturn-5 and the...

Are there any revisions to the NORAD TLE format planned? At the moment it uses two digit year dates. This will stop being viable around the 2060s, when it's...

I understand that the basic structure of the Shuttle is aluminum, rather like a Boeing 747. A titanium structure would weigh less. Further a titanium...

Would it be feasible to use aerobraking at Titan to facilitate a Titan orbiter? What about deployment of a long lived balloon within Titan's atmosphere, can...

Hello All, I have a question about something I saw in the photos of this week's Titan IVB launch. It is a phenomenon I've also seen in pictures of Titan...