The second half of the year seems to be getting off to a quiet start, which, while it is certainly better than “Living in interesting Times” as the saying goes, it also makes writing about interesting times a bit more challenging, giving writers the opportunity instead to hone their skills on topics less dire and deadly than usual. But it’s getting late, so I’ll keep you guessing what this might mean while I get some sleep…. Since the first May Post about the overcrowded communications satellite zone above us, there has been a bit of a surge in the media about this including talk of using large, rocket propelled nets to collect wayward satellites, for disposal, like a space-borne version of marine trawl fishing. Maybe, but rather a pity if this meant a significant number of satellites which could be renovated and re-used were sent into a death-dive into the atmosphere below. So, with an eye to economy, perhaps a few hundred or so orbital communications hubs could be established, each consisting of a cube-shaped control centre, which initially would be manned during the construction phase, and maybe later robotically operated. Each of these would support six long, four-sided tower-like structures, rather like todays hilltop radio towers, but because of the very small gravitational forces, much more lightly built, one attached to each face of the control centre might be capable of supporting the attachment of fifty of these captured and renovated, and new, radio relay modules on each of its four sides, that’s two hundred on each “tower” the whole assembly now becoming one relay satellite instead of 1,200 independently orbiting satellites, a significant reduction in the risk of collision. Expensive, yes, but unless risk reductions of this order and more are somehow achieved, I won’t be buying a ticket for a vacation on the Moon. ps Just had a last-minute check, about 4,500 satellites were launched into this zone last year!
Just to close off this digression from our two main themes, how to remove or alleviate the threats to our existence of nuclear bombs and global warming, I would like to acknowledge the good work being done by a number of experts in orbital mechanics, a field of which I know little, and my musings are those of a amateur. With that in mind, I limit my earlier claim to the “Silly old Blogger Conjecture” to the feeling that the well-known relationship between the increase in surface area and volume as the size of the pieces of space junk in a runaway collision scenario might be of greater significance than has been recognised, to the extent that such an event might pose little or no threat to observers at ground level. If we keep throwing more satellites into this zone at the present rate, we’ll soon enough see! In addition to my own interest in this subject, I was partly motivated to publish it here as a clear example of how far we have to go in international and interpersonal relationships before we can make real progress towards a harmonious human race, one that would not spend billions of dollars on military or media communications at the expense of making this crowded shell around Earth increasingly hazardous for space vehicles, including manned ones, to cross.
Silly Old Blogger
