Radium wrote: I've read about the sun's life cycle. Apparently, when the sun becomes a white dwarf, it will take at least a trillion years to completely ...

Can the shuttle fly like a plane? I mean take off from a runway, fly around and land again. Could you fly it, for instance, from California to Florida? With...

Someone please tell me why spacecraft are designed to reenter the earth's atmosphere at high speed. Isn't there some way to come down slowly, so the heat...

Does anybody know the name of the mars-sized planet that supposedly hit the earth and created the moon was called? I was watching Natural World just now and...

I'm trying my hand at making some 3D models of classic space habitat designs. My first effort can be seen...

Hi, I read a little while ago that a study which modelled the origin of the moon, assuming that a Mars size object crashed into the Earth, often came up with...

wrote: According to Einstein, velocity is relative. AND the speed of light is the limit. imagine two space ships; each travelling...

Hi everyone I'm new to this group. Is everyone or most everyone here scientist and / or have ph.d's or degrees in this area? is this open for no degreed...

1st International Conference on Hybrid Information Technology http://www.ichit2006.org/ This conference takes place in Cheju Island during 9-11 November...

New Las Cruces Rocket Company X-Prize Competitor June 1, 2006, Newly relocated to Las Cruces, Lee Rush President of Thrugate Aerospace told the X-Prize...

Hello, This is my first post here, so forgive me if these questions have been asked before. (and I'm not a scientist) Left and right we can read how lots of...

Hi all. I'm new here... I'm working on a very crude physics engine in C++/MFC as a hobby project, and i've gotten as far as being able to create a simple...

InEurope wrote: Hi I have two question 1. The CMB (Cosmic Microwave Background Radiation) Scientist say that it isotropic through out our universe ,...

A country boy with an interest in space is wondering how long will it take photos to get back to Earth from "New Horizons", once it arrives in the Pluto...

I've sent this once already, but it hasn't shown up. Sorry if it duplicates. We were discussing "Space Cadets" in work today, and someone asked if...

wrote: This is a paradox that I haven't found anyone to explain to me. That's undergrad physics material. There should be plenty of...

Are there any implications for earth from Mar's loss of atmosphere? Are there / were there processes involved which could be replicated here?? Are there any...

Imagine you stood on the north pole of the moon were there is no atmosphere, and tied a small stone to a rope, by spinning around and around you could in...

According to: http://aviationnow.com/avnow/news/channel_awst_story.jsp?id=news/030606p1.xml The Pentagon secretly built and flew a secret,...

A heavy, lengthy--say 20-30 km long--conductive cable attacjed to an Earth orbiting object (the Shuttle), tests have shown a considerable electric charge being...