I am going to describe something I saw on Discovery Wings and I hope you can help identify it. It was footage of an experiment that was not fully described in...

As others have pointed out, the press release was written for a general audience, so there are some confusing aspects of it. I worked on the design of the...

Hi, No flames plz, I'm not claiming to believe in any of the following, but was simply just seeking some enlightened answers. :) As you know, a couple of...

I have recently found out that a hamster was levitated by applying a strong magnetic field of 16 Teslas using a superconducting electromagnet. This is...

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

This is probably a dumb question, but... Would it be possible to use conventional jet engines to attain sufficient airspeed for scramjets to start to...

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...

Anyone know the status of research on heat exchanger laser launch technology? By that I mean a vehicle that carries a propellant (maybe ammonia) that runs...

Does anyone know about what kind of impact the space station can survive? Surely this has been analyzed. I would imagine that it can withstand a fleck of...

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...

I'm up on the Space Station and I go out for a nice little space walk. I take along my specially designed hunting rifle and fire a bullet down at the planet. ...

For any of you with an interest in Solar Power Satellite (SPS, or SSPS) concepts, I finally received NASA Technical Memorandum copies of my papers "Reinventing...

The Sirius Satellite Radio (www.sirius.com) says: "our three state-of-the-art satellites that rotate in figure eight, geo-synchronous orbits around the...

I read that the X-43 scramjet is being tested today, and I hope all goes well. But what I also read was that this technology is not considered optimal for the...

Lynndel Humphreys wrote: Would it not be just as easy to capture the Hubble and return it safely. Let's face it if 007 foes can do something similar...

I have a question that may have an obvious answer but I have lost too many brain cells for it to be obvious to me. isp is given as the thrust...

Bar the development of some revolutionary technology, is it realistic to think that we can land on Mars and come back? Say we want to bring a piece of Martian...

There has been a lot of work done on Hohman and Bielliptic transfers, but has there been anything on constant-thrust transfers? Of course, the "optimum" in...

The advantage of a pressure fed rocket, as I understand it, is much cheaper (and somewhat smaller and lighter) engines, but at the cost of very heavy tanks...

Just an idea I had - - - using the sun and shade(s) - - to send morse code messages across the galaxy. Any thoughts anyone? Perhaps use clouds of dust. ...