There's a very good 2003 sci-fi anime called Planetes[1] that explores the problem of space debris in some detail, and how humanity might deal with it in the future. Highly recommended if you're interested in these issues.
http://en.wikipedia.org/wiki/Planetes
"Unlike many other anime and science fiction productions, special care was given in Planetes for a very realistic depiction of space and space travel."
"The Japanese space agency JAXA served as a technical consultant to the series. The US version of the DVDs featured interviews with two scientists from NASA's Orbital Debris Section."
By the way, even though this is a tangent, could you please name other Animes that you believe would be of interest? I'm sincerely interested in hearing any of your recommendations.
Anybody else feel free to chip in.