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Spysat meteor observations now forbidden by Pat Flannery
No more meteor entry data from DSP constellation: http://www.wired.com/dangerroom/2009/06/pentagon-blinds-astronomers-to-armageddon/ Pat
June 19th 09 02:31 AM
by Pat Flannery Go to last post
0 939
ship floating on atmosphere by Bernhard Kuemel
Hi! Is it feasible to make a ship that floats on the atmosphere? A kind of bowl with the bottom at 5-10 km and the top so high that it can be sealed with a...
June 16th 09 06:11 PM
by Bernhard Kuemel Go to last post
0 800
Notice: SST Moderators by Greg D. Moore \(Strider\)
Derek and I will not be as available for the next week or so as usual. I will literally be in a hole in the ground most of the week. And my connectivity...
(Multi-page thread 1 2)
June 15th 09 02:20 AM
by Alan Erskine[_2_] Go to last post
11 1,467
Mopping up Space Junk by Andy[_3_]
I have a few ideas to throw into the global pot for consideration. After their useful lives, some satellites can deorbit with chemical or ion rockets or...
June 13th 09 04:00 AM
by Alain Fournier[_2_] Go to last post
7 1,358
Meteoroids in the main asteroid belt by Alain Fournier[_2_]
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...
June 12th 09 09:44 PM
by Steve Willner Go to last post
1 963
TDRSS ground station expansion? by Allen Thomson
I was looking at the original TDRSS ground station (32.502 N, 106.611 W) in Google Earth historical imagery and noticed that a substantial addition was made to...
June 8th 09 03:12 PM
by Jan Vorbrüggen[_2_] Go to last post
4 1,014
Meteoroids in the main asteroid belt by Andy Lee Robinson
On Jun 4, 3:32 am, Alain Fournier wrote: Space debris in LEO is somewhat of a problem. But I'm wondering about the space debris...
June 4th 09 12:16 PM
by Andy Lee Robinson Go to last post
0 1,035
Distributed computing demonstrated on orbit? by Matt
Has any group of spacecraft demonstrated distributed computing ("a program is split up into parts that run simultaneously on multiple computers communicating...
May 31st 09 02:55 PM
by Matt Go to last post
0 899
NASA orbit simulation software by João Gomes
Hey.. Does anyone knows what programs does NASA use to simulate and predict the orbit of a spacecraft? and for simulate the reentry phase of the shutle and...
(Multi-page thread 1 2 3 ... Last Page)
May 25th 09 04:48 AM
by kevin willoughby Go to last post
51 7,743
Sun synchronous explanation by oriel36[_2_]
The common explanation for satellite 'precession' relies on planetary spherical deviation - " The uniformity of sun angle is achieved by tuning natural...
May 18th 09 05:41 AM
by OM[_17_] Go to last post
3 1,215
Can and if so, will, Orion use Soyuz docking port on ISS? by David Spain
Subject says it all. And if the answer to the first part is no, why? Dave
(Multi-page thread 1 2)
May 16th 09 03:00 AM
by OM[_17_] Go to last post
14 1,515
Global Cooling by John Hampson
Hi, Does anyone know if a ballistic trajectory exists directly from the Moon’s surface to the Earth-Sun L1 Lagrange point? I’m interested to know if it’s...
(Multi-page thread 1 2)
May 9th 09 04:07 AM
by Steve Willner Go to last post
11 1,832
Has wireless power transfer ever been demonstrated in space? by Matt
Orbital Express and some other missions have demonstrated power transfer or recharging after a hard dock. Has anyone done it with RF/ laser/other wireless...
May 4th 09 02:46 PM
by [email protected][_2_] Go to last post
3 979
Moon City + bone health ? by Ken S. Tucker
This post is adjunct to the "Moon City?" post, but specialized. There seems to a problem with human frame degradation in 0 and low g, (1/6 g) enviroments. I...
(Multi-page thread 1 2)
April 23rd 09 12:03 PM
by Jan Vorbrüggen[_2_] Go to last post
13 1,417
Reboosting the International Space Station after shuttles go? by Oneandonly1
Shuttles and Soyuzes both boost the ISS a few miles higher to overcome the drag of the wisps of atmosphere. But after 2010, or maybe a bit of 2011, the...
April 23rd 09 04:14 AM
by Jorge R. Frank Go to last post
1 862
Low Mass Space Mirrors by John Hampson
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...
April 22nd 09 03:46 AM
by sonnybeach Go to last post
1 954
Moon City + cost/# ? by Ken S. Tucker
What is the cost, using the projected Ares V system, to deliver 1# (or kilogram) to the moons surface? I appreciate this is a difficult answer to quantify. To...
April 21st 09 07:56 AM
by Pat Flannery Go to last post
3 1,165
Moon City? by Ken S. Tucker
My impression of the long range goal of Program Constellation is the establishment of a permanent *city* on the Moon. (?). I use the term "city" instead of...
(Multi-page thread 1 2 3)
April 17th 09 12:43 AM
by Derek Lyons Go to last post
20 1,731
Orion floatation characteristics by Dave Downing
Hi all, I see they have been conducting tests in water with floatation collars and buoyancy balloons on the new Orion capsule. Does anyone know if anything...
April 13th 09 04:08 AM
by Greg D. Moore \(Strider\) Go to last post
5 902
moon replaced by big planet? or where could planet be by earthwithout harm? by [email protected]
moon replaced by big planet? if planet far away would tides and other effects be the same? or where could planet be by earth without harm? how far must planet...
April 11th 09 02:46 PM
by Fred J. McCall[_3_] Go to last post
1 993
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