I was wondering is there any gravity machine exist or under developing? If it does exist, what theory is about. Can it increase or decrease gravitational...

The shuttle-derived heavy-lift vehicles under discussion would for the most part be powered by the SSME. Why use the expensive SSME on an expendable vehicle...

I was wondering if someone could confirm that the masses of the following fictional, upper stage spaceplane (VTHL) was realistic given current aerospace...

I recently read of the plan to sell commerical seats to the moon via a Soyuz flyby. Of course, the Soyuz was originally designed to go to the moon during the...

As far as I can determine, all U.S. capsule splashdowns have been in the South Pacific or Atlantic Oceans. Are there any reasons why the Gulf of Mexico has...

I think I understand why objects heat up when going through the atmosphere and therefore why re-entry vehicles need heat shielding. My question is why we...

Are there people stayin in International Space Station. If yes where can we get the profile for these people. and what exactly are they up to Abhishek

Story Musgraves' description of the Shuttle at the recent IICA2005 Conference in Melbourne, Australia, last week... Story gave two slide-shows from his time...

i'm putting together a powerpoint slide show for my class...i'm looking for a nice size nasa meatball....3d...animation or gif... can anyone help??

To get a sense of how this collaborative design will work, pick a subject that you know quite a bit about. Look it up in Wikipedia. Hopefully you can find...

If one wanted to have a wall between vacuum and .15 Oxygen atm (or 1 atm air if you wish), what material will after a micro-meteor passes through patch...

First, the principle : Lightning on demand, drawing down a bolt of lightning for performing scientific studies, is usually done by firing a rocket into an...

First, the principle : Lightning on demand, drawing down a bolt of lightning for performing scientific studies, is usually done by firing a rocket into an...

The DC-X and DC-XA VTVL demonstrators of the 1990s were originally seen as just the first steps toward an operational re-usable SSTO, the DC-1 or Delta...

Dear all: As you may have heard, one of the difficulties in using the Space Shuttle's External Tank as an orbiting space station or factory (rather than...

Hi All, I tried this question at sci.space.history...but I guess a few years late... Does anyone know where to find images of worn and damaged Apollo...

During the past few years I have asked several questions about planetary drillers in sci.space.* newsgroups and I've got some very good answers, links and...

What happens to upper stage exhaust plume products after, for example, a geosynchronous transfer orbit burn from an initial parking orbit? Do the products of...

A new turbine has been announced which is claimed to have unprecedented low cost and...

At a meeting to the Systems Engineering Society of Australia last week, Pamela Melroy (STS-92, STS-112) stated that the only things on the ISS _not_ controlled...