Michio Kaku on Satellites Collision - Space Junk - BBC News America

[daflybotter]

I swear to god I've seen something tonight come diving out of the sky just looked like a shooting star but most deffinatly not , I watched it go down for about 20 seconds, was just a huge ass fireball - left with no chance of getting proof just a witness

[RuniScience]

@daflybotter > Around September 24th 2011 a 5tonne satellite fell over Canada ("see "Keppler at Deep Impact -From Star Wars to Star Falls" watch?v=v018bSFeiqw ) ... Maybe this was another one ... Thanks, Runi

[AsitaVin]

this is disgusting. We can't even come to terms with our shit on the earth.

[thusharamful]

We can make sweeper satellites and place them into each layer of the orbit.Most of the debris are made of metal and we should be able to make a device that activates magnetical field and collect all the debris exclude good satellites.But such a device could cost billions and also need international co-operation which we lacking in many issues such as global warming.

[ultrapirtle]

Most of the junk cleans itself up. Solar flares heat and swell the atmosphere, and much of low orbit debris are burned up as they are caught and dragged down. The debris drifting further out is harder to clean up, but its important to remember that this collision wasn't caused by space debris. It created space debris. That thread seems to have been lost in some of the dialog.

[RuniScience]

@ultrapirtle > I would disagree, although what you say is absolutely right ... The dialogue and report explain just that. This was a collision of two satellites that created space debris, but as a report it questions how serious the problem of space junk is and Prof Michio Kaku elaborates ... I see nothing wrong with this. Thanks for commenting, Runi Toconillo