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Gray Rinehart
05-04-2008, 07:19 AM
The argument is nothing new, but an April 28th New Scientist article, "Space war would leave destructive legacy," (http://technology.newscientist.com/channel/tech/mg19826535.400-space-war-would-leave-destructive-legacy.html?feedId=online-news_rss20) pointed out that,


If war ever breaks out in space it's not the loss of individual satellites that will do the damage, but the debris this produces. It will stay in orbit and go on harming satellites for decades, according to two studies presented at the American Physical Society meeting....

The question is, what do we need in terms of equipment, tactics, etc., to mitigate that result?

Almost more interesting from the same article, though, was the contention from an MIT researcher that the US has "built up such high redundancy [of] space assets that we're almost invulnerable" to a space attack. In which case the questions are, what do we need to remain invulnerable and how do we avoid letting perceived invulnerability lead to complacence?

Gray Rinehart
02-11-2009, 08:55 PM
This seemed the best place to put a post about this news.

Our space brethren are undoubtedly studying the effects of yesterday's collision between an Iridium commercial communications satellite and COSMOS-2251, a Russian communications relay satellite that was believed to be inoperative.

See this Spaceflight Now page (http://www.spaceflightnow.com/news/n0902/11iridium/) for the story.

Understatement of the day: "it's not yet clear whether [the debris] poses a risk to any other military or civilian satellites."

It would be fascinating to know whether anyone had predicted the satellites' close approach, and what their relative velocities and orbital tracks were. One thing for sure: this is a great case study and learning experience for orbital analysts and space tacticians.

dbergeron
02-12-2009, 08:45 PM
Ouch. It was bound to happen sooner or later, but in a constellation orbit, I'd bet people are really scrambling to protect the other birds in that plane. Sounds like they are downplaying the risks, but this could get ugly quickly.