Eliminating Space Debris Part Two
Bethesda MD (SPX) Nov 24, 2008 In a recent editorial, Launchspace asked their readers to send suggestions on how to solve the space debris problem. We had a great response, and the suggestions fall into two main categories: 1. Limiting new debris through such means as de-orbiting mechanisms integrated into the design of future satellites and 2. Eliminating existing space debris. If we are to save space as a useful asset for human enterprise, both of these categories must be addressed. In fact, there is already general agreement among space-faring nations that new spacecraft be capable of: (a) minimizing new debris by not releasing non-essential parts into space; and (b)�have the ability to move a satellite�into a higher orbit or de-orbit it�at end-of-life. In most cases, low orbiting satellites can cause their own de-orbit when the useful mission is completed. However, the debris problem continues to increase due to collisions and failures. Thus, we must actively attack the problem of debris elimination. And, as we mentioned in the prior editorial, our focus is on this problem. Thanks to our readers, we can offer brief descriptions of a few interesting submissions: + Use a ground based-laser that can track specific debris pieces and hit them with enough energy to change their orbits. This was submitted by multiple contributors. + Utility satellites such as "garbage scows" were suggested. Such spacecraft can maneuver up to single debris pieces and capture one at a time. These could be robotic or crewed and would eventually de-orbit themselves for disposal or later reuse. + Create a financial prize for some entrepreneur to retrieve debris. + Create a football-field-size drag net using multiple satellites to maintain tension.� + A number of tether technologies were proposed from multiple sources. + More than one contributor suggested passive devices such as "sweepers" and "absorption spheres." This is just the tip of your contribution and�over the next few weeks Launchspace will post more details about the ideas submitted. Related Links Launchspace Space Technology News - Applications and Research
Eliminating Space Debris Bethesda MD (SPX) Nov 18, 2008 There is so much space debris in low orbits around the Earth, we wish Chicken Little were right about the sky falling-at least when it comes to debris that is cluttering up our space environment and starting to truly interfere with use of space. |
|
The content herein, unless otherwise known to be public domain, are Copyright Space.TV Corporation. AFP and UPI Wire Stories are copyright Agence France-Presse and United Press International. ESA Portal Reports are copyright European Space Agency. All NASA sourced material is public domain. Additional copyrights may apply in whole or part to other bona fide parties. Advertising does not imply endorsement, agreement or approval of any opinions, statements or information provided by Space.TV Corp on any Web page published or hosted by Space.TV Corp. Privacy Statement |