sci.space.moderated has links to articles about Stanford's entry and (thanks to L Sternn) to the CMU Red...

Not sure how on topic this is here, but I notice in Nature this week a discussion about the so called force that has meant these craft are not where they are...

Do spin-stabilized satellites have attitude drift requiring periodic correction? If not, why? Even inertial navigation platforms have drift. If yes, how do...

I recently came across an intriguing photo of what appears to be a four-engined Titan first stage. http://www.bernd-leitenberger.de/titan34.html (scroll down...

All I could find on Google are countless links which give inclination of eclipses related to Earth equator, or inclination of Earth axis related to...

I was too busy this morning to post this note, however; Midday wednesday my mail system was knocked offline by a unusually large spike in virus emails...

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

I'd like to bounce a propulsion idea off the experts of this group: Visualize a very small, v-shaped notch in a thin layer of diamond - maybe 100nm wide and...

Tom wrote: So how big is the impellor going to be in this pump? It doesn't have one. I considered a volute casing Barske-type impellor pump, but it would...

How does the width of a frequency band relate to the actual digital communications bandwidth? For instance, the Ka band satellite downlink is from 18.3-18.8...

Posted-By: auto-faq 3.3.2 beta (PGPMoose V2.0, Perl 5.005) Archive-name: space/moderated/welcome Revision: 1.2 2018/07/02 04:26:26 Posting-Frequency: posted...

Fifteen years ago Richard Moss proposed to levitate a superconductive cable in the Earth magnetic field. This idea does not make sense because no existing...

Space Station News /////////////////////////////////////////// NASA Astronaut Kate Rubins, Crewmates Return Safely to Earth Posted: 16 Apr 2021 09:28 PM...

I keep seeing this term, Coaxial Pintle Injector I've only found one picture and it does not exactly jive with the text descriptions. Any good...

Those you interested in Space Settlement might want to know that I've added some Screen Savers to my Space Settlement site...

Can someone explain what a bieliptic transfer orbit is more efficient than a Hoffman transfer orbit when the ratio of initial to final orbits is large and...

Saw this on NEOs: http://www.spaceref.com/news/viewsr.html?pid=15720 Now I might be a bit stupid in my reading, but it sounded a lot like "how do we cope...

Watching the second launch of Spaceship 1 and thinking on the roll couple that begins as the rocket is fully started and seems to get a step increase crossing...

Space Station News /////////////////////////////////////////// NASA TV Coverage Set for Next Cargo Launch to Space Station Posted: 12 Feb 2021 07:12 AM...

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...