Space debris in LEO is somewhat of a problem. But I'm wondering about the space debris problem in the asteroid belt. Let's say we build a mining colony on a...

On Apr 3, 4:40 am, BradGuth wrote: On Apr 1, 5:29 pm, "Greg D. Moore \(Strider\)" wrote: ...

The reason for a two stage to orbit design are that you want to end up in orbit with the minimum amount of excess stuff. Since you can't throw away much else,...

(Josh Gigantino) wrote in message ... I am trying to find out how much extra LOx and...

Space Station News /////////////////////////////////////////// Landing Coverage Set for NASA Astronaut Chris Cassidy, Space Station Crew Posted: 15 Oct 2020...

Nuclear fission converts about 1 part in 200 of the nucleon rest mass to energy. Nuclear fusion converts about 1 part in 20 of the nucleon rest mass...

So, from deep within the peanut gallery come a couple questions/comments and such that will perhaps sound absurd but if nothing else I suspect the responses it...

Rapid manufacturing (also known as direct manufacturing) is an additive fabrication technology that makes complex parts automatically from a CAD STL file....

Assuming a lunar settlement uses solar power for all their energy needs, the biggest problem is how to store power during the 328 hour lunar night. If the...

Would be used for Mars to expand latitudes where landings can be made: http://spaceflightnow.com/news/n0908/17wallops/ Pat

The idea of reflecting sunlight using mirrors at the Earth-Sun L1 Lagrange point to reduce global warming is well established. It appears to be based on...

Hi, I've come to this newsgroup for some help with a question regarding the behavior of a billiard ball on a string which is rotating about a central point....

MODERATOR'S COMMENT: Approving, but I believe you're confusing the Martian Year with the Ma rtian Sol(which is a little over 39 minutes longer than an...

In another thread suggested that the RS-68 might make a better engine for a shuttle derived vehicles this prompted me to go to "Encyclopedia...

The scientist who recently announced that they may have created an extremely short-lived black hole in the lab got me thinking; is the following a plausible...

Hello everybody, I have two questions to ask: 1- Is it possible to have a satellite orbit parallel to the equatorial plane? Something like a GEO orbit but...

No more meteor entry data from DSP constellation: http://www.wired.com/dangerroom/2009/06/pentagon-blinds-astronomers-to-armageddon/ Pat

This is the weekly Frequently Asked Question (FAQ) posting for sci.space.tech and sci.space.science . It is crossposted into sci.space.policy to explain...

Some months ago I reconsidered an old idea of mine about a different way to go to space. I still believe it might work. But feel free to tell me why you reckon...

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