BBC News – Space debris collisions expected to rise

http://www.bbc.co.uk/news/science-environment-22253966
22 April 2013 Last updated at 11:10 ET

 

By Jonathan Amos Science correspondent, BBC News
Fortunately, there have been very few collisions in orbit so far

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Unless space debris is actively tackled, some satellite orbits will become extremely hazardous over the next 200 years, a new study suggests.

The research found that catastrophic collisions would likely occur every five to nine years at the altitudes used principally to observe the Earth.

And the scientists who did the work say their results are optimistic – the real outcome would probably be far worse.

To date, there have been just a handful of major collisions in the space age.

The study was conducted for the Inter-Agency Space Debris Coordination Committee.

This is the global forum through which world governments discuss the issue of “space junk” – abandoned rocket stages, defunct satellites and their exploded fragments.

The space agencies of Europe, the US, Italy, the UK, Japan and India all contributed to the latest research, each one using their own experts and methodology to model the future space environment. ….(read more).

Global Climate Change http://courses.dce.harvard.edu/~envre130
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